TEST=ci
Change-Id: I4277a4f4f2c3bd9dedd9e325167b67130b5afc2d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/319260
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Alexander Thomas <athom@google.com>
This test is flaky and timing out on hot reload bots.
Change-Id: If0c9574ac80405d14765e4ada4fdee8e6bce9d79
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/319001
Reviewed-by: Alexander Aprelev <aam@google.com>
Auto-Submit: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Alexander Aprelev <aam@google.com>
Allow updating weak handles etc to happen in parallel with work-stealing.
Also make LocalBlockWorklist more symmetric with BlockWorklist.
Cf. 4495c2b30a
TEST=ci
Change-Id: Id58fe16be92028b1aa4dd8f097769b4107f2a3f0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/316043
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Whether the reordered objects fail to fit depends non-deterministically on the parallel worker speeds and the exact contents of new-space that vary with each VM or core library change.
Bug: https://github.com/dart-lang/sdk/issues/52936
Change-Id: I6e287d42b5ca77d2ffafd9a5a053118617d6fe51
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/313940
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Retrieval of local names only works in JIT as it relies on availability of LocalVarDescriptors.
For example, for this
```
import 'dart:isolate';
foo() {
final x = RawReceivePort();
RawReceivePort().sendPort.send(() => print("$x"));
}
main() {
foo();
}
```
error message says
```
Unhandled exception:
Invalid argument(s): Illegal argument in isolate message: (object is a ReceivePort)
<- field x in foo.<anonymous closure> (from file:///usr/local/google/home/aam/p/d/dart-sdk1/sdk/s1.dart)
```
Bug: https://github.com/dart-lang/sdk/issues/52957
TEST=ci
Change-Id: I684014fd19ea82829e7df17a8a67d386551a5a82
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/314501
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Alexander Aprelev <aam@google.com>
- Don't need to repeatedly verify function fingerprints for each isolate.
- Fix test detecting when it runs under debug mode or a simulator.
Change-Id: Iace0ebc274d4c01561a4b563a420e80535b1ff59
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/313243
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Alexander Aprelev <aam@google.com>
Makes the TSAN skips apply to
`test.py -mrelease --sanitizer=tsan`
and not just
`test.py -n vm-tsan-linux-release-x64`.
Also makes the timeouts agree.
Change-Id: I10315e754a4ebb3020f3c2f6cecfac6b77e77a9b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/311828
Reviewed-by: Alexander Thomas <athom@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
The timeout multipiler for linux-arm64 was originally 4, then lowered to
1 (see [0]), then increased again to 2 (see [1]).
Though it seems that service tests are still flakily timing out, so
let's try restoring the original multilier.
[0] https://dart-review.googlesource.com/c/sdk/+/306662
[1] https://dart-review.googlesource.com/c/sdk/+/307972
Also special case `ia32` in timeout calculations due to not using
an AppJIT trained `kernel-isolate` snapshot and therefore being
very slow, especially in ia32-debug mode.
Issue https://github.com/dart-lang/sdk/issues/52589
TEST=ci
Change-Id: Iab8c768866aec9e77bb83c7a3242cc5de8fb4e2f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/312905
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
It's not supported, as it would prevent the value from being
garbage collected, defeating the purpose of Finalizer.
Not sure if an exception is worth it, so added the assert
as suggested in the bug tracker.
TEST=vm/dart{,_2}/finalizer/finalizer_attach_checks_token_test
Bug: #52731
Change-Id: Id7b457ca1a95e71c1a43d2d2c8569c35659952b2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/311020
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Slava Egorov <vegorov@google.com>
The main contribution of this CL is unification of disparate
handling of various functions like `Future.timeout`,
`Future.wait`, `_SuspendState.createAsyncCallbacks` and
`_SuspendState._createAsyncStarCallback` into a single
`@pragma('vm:awaiter-link')` which allows Dart developers
to specify where awaiter unwinder should look for the next
awaiter.
For example this allows unwinding to succeed for the code like this:
Future<int> outer(Future<int> inner) {
@pragma('vm:awaiter-link')
final completer = Completer<int>();
inner.then((v) => completer.complete(v));
return completer.future;
}
This refactoring also ensures that we preserve information
(including Function & Code objects) required for awaiter
unwinding across all modes (JIT, AOT and AOT with DWARF stack
traces). This guarantees users will get the same information
no matter which mode they are running in. Previously
we have been disabling awaiter_stacks tests in some AOT
modes - which led to regressions in the quality of produced
stacks.
This CL also cleans up relationship between debugger and awaiter
stack returned by StackTrace.current - which makes stack trace
displayed by debugger (used for stepping out and determinining
whether exception is caught or not) and `StackTrace.current`
consistent.
Finally we make one user visible change to the stack trace:
awaiter stack will no always include intermediate listeners
created through `Future.then`. Previously we would sometimes
include these listeners at the tail of the stack trace,
which was inconsistent.
Ultimately this means that code like this:
Future<int> inner() async {
await null; // asynchronous gap
print(StackTrace.current); // (*)
return 0;
}
Future<int> outer() async {
int process(int v) {
return v + 1;
}
return await inner().then(process);
}
void main() async {
await outer();
}
Produces stack trace like this:
inner
<asynchronous suspension>
outer.process
<asynchronous suspension>
outer
<asynchronous suspension>
main
<asynchronous suspension>
And when stepping out of `inner` execution will stop at `outer.process`
first and the next step out will bring execution to `outer` next.
Fixes https://github.com/dart-lang/sdk/issues/52797
Fixes https://github.com/dart-lang/sdk/issues/52203
Issue https://github.com/dart-lang/sdk/issues/47985
TEST=ci
Bug: b/279929839
CoreLibraryReviewExempt: CL just adds @pragma to facilitate unwinding
Cq-Include-Trybots: luci.dart.try:vm-aot-linux-product-x64-try,vm-aot-linux-debug-x64-try,vm-aot-linux-release-x64-try,vm-aot-obfuscate-linux-release-x64-try,vm-aot-dwarf-linux-product-x64-try
Change-Id: If377d5329d6a11c86effb9369dc603a7ae616fe7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/311680
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Slava Egorov <vegorov@google.com>
The makes it possible to run just these tests with `test.py vm/gc/`.
Change-Id: Ied4aa0b2fb045c19b1aced68f58a1ef195a5df8a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/311145
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Previously, inliner was able to inline closure calls only when closure
was allocated in the current function (or in a function which was
inlined so far). This is not true for local functions declared in outer
functions (they are allocated at declaration site).
Now, when calling local functions, target of closure call is always
known regardless of where the function is declared, so calls to local
functions can be inlined.
TEST=runtime/tests/vm/dart/inline_local_functions_il_test.dart
Fixes https://github.com/dart-lang/sdk/issues/52695
Fixes https://github.com/dart-lang/sdk/issues/15558
Change-Id: I0e51dbaf63a6d4427bff366b40414ca5fac3d418
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/311465
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
The main difference from the previous harness is that it
allows auto updating the expectations instead of
maintaining them manually.
This relands 0c1b2722ed with
changes to harness which fix issues on Windows.
Note: some amount of AOT failures are expected and should just
be approved. They will be fixed with the last CL in the series.
TEST=ci
Cq-Include-Trybots: luci.dart.try:vm-win-release-x64-try
Change-Id: I7ae84769ed54bc447ebf71acc68ba9d0b6717bac
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/311604
Reviewed-by: Tess Strickland <sstrickl@google.com>
Commit-Queue: Slava Egorov <vegorov@google.com>
Auto-Submit: Slava Egorov <vegorov@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
This reverts commit 0c1b2722ed.
Reason for revert: Failures on AOT (stack expectations unmet) and Windows (parse errors due to Windows paths) trybots.
Original change's description:
> [vm] Rename tests causal_stacks -> awaiter_stacks and improve harness.
>
> The main difference from the previous harness is that it
> allows auto updating the expectations instead of
> maintaining them manually.
>
> TEST=ci
>
> Change-Id: I80e303d3ecbcc834ac94fa089cabe4f8834cc661
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/311400
> Reviewed-by: Alexander Markov <alexmarkov@google.com>
> Commit-Queue: Slava Egorov <vegorov@google.com>
Change-Id: I7311bf08403f4167f88f6204fde1a6fdee353f7d
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/311600
Commit-Queue: Slava Egorov <vegorov@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
The main difference from the previous harness is that it
allows auto updating the expectations instead of
maintaining them manually.
TEST=ci
Change-Id: I80e303d3ecbcc834ac94fa089cabe4f8834cc661
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/311400
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Commit-Queue: Slava Egorov <vegorov@google.com>
This is just a larger version of another test
vm/cc/TypeArguments_Cache_SomeInstantiations, which does run on
qemu and tests the same paths, so it's okay to skip.
TEST=vm-linux-release-riscv64-qemu
Change-Id: Ie39665c818cc95c934582383b5e57d77f539f46d
Cq-Include-Trybots: luci.dart.try:vm-ffi-qemu-linux-release-riscv64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/310680
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Auto-Submit: Tess Strickland <sstrickl@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Sometimes compiler omits type checks for the 'await' and 'return from
async' by relying on the fact that certain classes cannot hold
instances of Future.
In JIT mode, the property 'class-can-be-Future' may change when a new
class is loaded dynamically (e.g. through IsolateMirror.loadUri).
In such a case, the generated code assuming that certain class
cannot be Future should be correctly deoptimized.
This CL implements this deoptimization by adding such classes into
the list of CHA guarded classes.
TEST=runtime/tests/vm/dart/await_type_check_with_dynamic_loading_test.dart
Change-Id: Ib3a3768d073e8562b794186e72cb9d61e9f496fa
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/309822
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
This CL adds the token position of the checked parameter when doing the
AssertAssignable for better stacktraces when it fails.
E.g.
```
$ cat t.dart
class A {
void takesA(A a) {
print("Hello A");
}
}
class B extends A {
void takesA(covariant B b) {
print("Hello B");
}
}
void main() {
A a = new A();
A b = new B();
b.takesA(b);
b.takesA(a);
}
```
Before fix:
```
$ out/ReleaseX64/dart t.dart
Hello B
Unhandled exception:
type 'A' is not a subtype of type 'B' of 'b'
#0 B.takesA (file:///path/to/t.dart)
#1 main (file:///path/to/t.dart:16:5)
[...]
```
With fix:
```
$ out/ReleaseX64/dart t.dart
Hello B
Unhandled exception:
type 'A' is not a subtype of type 'B' of 'b'
#0 B.takesA (file:///path/to/t.dart:7:27)
#1 main (file:///path/to/t.dart:16:5)
[...]
```
TEST=runtime/tests/vm/dart/checked_parameter_assert_assignable_stacktrace_test.dart
Change-Id: I6409f6d9c41e9825391957f0df2b92b48ed0eb7a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/302203
Commit-Queue: Jens Johansen <jensj@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
This allows us to keep symbol names for classes/methods/fields - even if
obfuscation is enabled, but has no other effect on tree shaker / ...
For go/dart-ama
TEST=vm/dart/keep_name_pragma_test
Change-Id: I66c0fc32217d9180f821658bae463f2c1d7fb1af
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/309740
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
Auto-Submit: Martin Kustermann <kustermann@google.com>
We use specialized type testing stubs in `as` checks to quickly answer
whether the type of an object is assignable to a given type. However,
perfect specialization of the type testing stub is not possible in all
cases. Thus, we use SubtypeTestCaches (STCs) to cache the result of
checking assignability in the runtime to avoid repeated runtime calls
for the same check.
Previously, the STC was linear and capped at 100 entries. This cap was
for two reasons:
* STC are created per `as` check, not per checked type, so there could
be many STCs created for a given type if assignability to that type
is checked many times throughout the code.
* STC were strictly linear, and thus eventually the cost of
traversing the cache outweighs the cost of returning a false
negative that requires going to the runtime and doing the check there.
This CL provides a partial solution to the second reason by performing
similar work to that done for instantiation caches in TypeArguments
(4f925105), where the STC is linear up to a certain threshold, and then
converted to a hash-based STC. Like that CL, only the runtime currently
handles the lookup of cached results in hash-based STCs, with the
changes needed for the `SubtypeNTestCacheStub`s coming in a followup CL.
Since the stubs have not yet been adjusted, we keep the maximum size of
linear caches the same at 100, and allow hash-based STCs to grow to a
maximum size of 1000 since the STCs are still created per `as` check.
This means once the STC has grown over 100 entries, all STC checks
require a runtime call, but for checks cached in the STC, the answer is
found and provided without either doing the slower full runtime check
for assignability and without an attempt to respecialize the type
testing stub when applicable.
Our benchmarks generally see at most a ~2-5% performance regression for
cases where the STC remains linear (except for on the Raspberry Pi 4, where the hit ranges from ~25%-40%), but a performance improvement of
~500-1300% for cases where the STC is converted to a hash table.
TEST=vm/cc/TTS_STC_{Some,Many}Asserts
Change-Id: Ie8629708b5c12fa8464359a2f77c6da56ba46c0c
Cq-Include-Trybots: luci.dart.try:vm-aot-linux-debug-simriscv64-try,vm-aot-linux-debug-x64-try,vm-aot-linux-release-x64-try,vm-aot-linux-product-x64-try,vm-aot-linux-release-simarm64-try,vm-aot-linux-release-simarm_x64-try,vm-aot-linux-debug-x64c-try,vm-aot-mac-release-arm64-try,vm-kernel-precomp-linux-release-x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-aot-dwarf-linux-product-x64-try,vm-linux-release-ia32-try,vm-linux-debug-x64c-try,vm-linux-debug-x64-try,vm-linux-debug-simriscv64-try,vm-linux-release-simarm64-try,vm-linux-release-simarm-try,vm-mac-release-arm64-try,vm-mac-release-x64-try,vm-tsan-linux-release-x64-try,vm-reload-rollback-linux-release-x64-try,vm-reload-linux-release-x64-try,vm-ffi-qemu-linux-release-arm-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/284682
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
It appears either the effects of madvise(DONTNEED) aren't emulated or we're confounded by the memory usage of the emulator itself.
Bug: https://github.com/dart-lang/sdk/issues/52653
Change-Id: I14d5efabb7413ed14ddc60426a3e7e4a796f3a60
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/308740
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Brian Quinlan <bquinlan@google.com>
For direct-to-ELF snapshots, the story remains the same as before,
as we use the information from the Image header if available.
If it isn't, then we fall back to dladdr to get the dynamic shared
object containing the app snapshot and then walk the ELF or Mach-O
headers to find the build ID or UUID information.
TEST=vm/dart/use_dwarf_stack_traces_flag
Issue: https://github.com/dart-lang/sdk/issues/51941
Change-Id: I3705ed244d1b4a1255e75fffd238a29fc2a60800
Cq-Include-Trybots: luci.dart.try:vm-aot-dwarf-linux-product-x64-try,vm-aot-linux-debug-simarm_x64-try,vm-aot-linux-debug-x64-try,vm-aot-linux-release-x64-try,vm-aot-mac-product-arm64-try,vm-aot-mac-release-arm64-try,vm-aot-mac-release-x64-try,vm-aot-linux-product-x64-try,vm-aot-win-release-x64-try,vm-aot-win-product-x64-try,vm-aot-win-debug-x64c-try,vm-aot-android-release-arm_x64-try,vm-aot-android-release-arm64c-try,vm-fuchsia-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/306640
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Tess Strickland <sstrickl@google.com>
- More expensive sweeping that will also slow down the mutator from more TLB invalidation
- Might cause OOM sooner from PTE fragmentation
- Won't decrease the Dart heap capacity stat
- Unclear how often holes are at least page sized
TEST=ci
Bug: https://github.com/dart-lang/sdk/issues/52571
Change-Id: I54011e451bf0ad21859c11023d1c4123cc0fa435
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/306902
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
This change makes this test much faster and should fix the timeouts on
the slow simarm_x64 configuration.
Change-Id: I6ba489d2dee3963bb070c1e86abff88420fa3ce7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/306900
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Setters of late final fields should check that field is not initialized
yet, so they should not be replaced with a StoreField in call specializer.
TEST=runtime/tests/vm/dart/regress_52554_test.dart
Fixes https://github.com/dart-lang/sdk/issues/52554
Change-Id: I2d7a4a8e112fe7b78e6d28efe4174159e3cabe04
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/306303
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
This test is launcing N=20 parallel tracks. Each track is effectively
a child isolate that will make a tail call to another child isolate.
=> Limit number of parallel isolates to number of cores.
We are seeing sometimes failures where prints get interleaved into
stdout.
=> Do not assume the strings in stdout are from start of line.
We are sometimes seeing timeouts even though all isolates have finished
in the subprocess
=> wait for exit code & RPC connection closing in parallel
=> print their result.
Issue https://github.com/dart-lang/sdk/issues/51347
TEST=vm/dart{,_2}/isolates/reload_many_isolates_live_and_die_test
Change-Id: Ie8ecf863c2aab04264edf05a5628fa23b26a4813
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/306602
Commit-Queue: Martin Kustermann <kustermann@google.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
Also changes pkg/native_stack_traces to return a parsed MachO file
if the MachO file doesn't contain DWARF information, so we can examine
its static symbol information for the new test.
Issue: https://github.com/flutter/flutter/issues/124715
TEST=vm/dart/unobfuscated_static_symbols
Change-Id: I07d3ced56eeba852ebe4178dfd2b66ebb899eb76
Cq-Include-Trybots: luci.dart.try:vm-aot-dwarf-linux-product-x64-try,vm-aot-linux-product-x64-try,vm-aot-linux-debug-x64-try,vm-aot-linux-release-x64-try,vm-aot-obfuscate-linux-release-x64-try,vm-aot-mac-product-arm64-try,vm-aot-mac-release-arm64-try,vm-aot-mac-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/305720
Commit-Queue: Tess Strickland <sstrickl@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
This test is launcing a subprocess with N parallel tracks.
Each track is effectively a child isolate that will make a
tail call to another child isolate. This process will continue
until a reload is requested.
=> So it tests performing hot-reload of an application that has
a lot of isolate creation, initialization, destructions in it.
Right now it uses N=20 for normal architectures (and N=2 for
simulators).
It turns out that part of the slowness of this test is due to the
subprocess's "vm-service" sending massive amounts of data via the
websocket to the parent process that performs reloading:
Each isolate will produce 4 events:
* IsolateStart
* IsolateRunnable
* ServiceExtensionAdded
* IsolateExit
and send those to the `vm-service` isolate. The service isolate will
then send those further via the WebSocket API to the parent process.
=> For 400k isolates this may send 3 GB of data via websocket.
=> The individual events most likely result in individual syscalls.
=> Networking stack on windows/mac may not be soo good, which
would explain why it's more likely to time out there vs linux
We ensure the helper reload utilites unsubscribe to the "isolate"
stream once there's no longer a need for it.
=> This will avoid the 3 GB of network traffic.
=> It will avoid a subset (but not all) of the isolate -> vm-service events
Issue https://github.com/dart-lang/sdk/issues/51347
TEST=vm/dart{,_2}/isolates/reload_many_isolates_live_and_die_test
Change-Id: I971b983a08ea8febd38e8b40a53ed6b114c4daca
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/306421
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Martin Kustermann <kustermann@google.com>
When loading cached hash code, asm intrinsic used LoadCompressed
which results in garbage in the high 32-bits of the register.
So the full register was not zero and intrinsic could return zero value
in the low 32-bits.
TEST=runtime/tests/vm/dart/regress_49672_test.dart
Fixes https://github.com/dart-lang/sdk/issues/49672
Change-Id: Ie800dcea02db5b54bd8bf7e9df0f437f09e92932
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/305360
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Unboxing of records involves a more complex code, and such intrinsics
would be similar to the normal code of the implicit getters.
TEST=runtime/tests/vm/dart/regress_52449_test.dart
Fixes https://github.com/dart-lang/sdk/issues/52449
Change-Id: I24867a7e0a3d081c53860f7f44c3be3d90b0b743
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/304282
Commit-Queue: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
