This:
(1) Uses dartdevc and kernel_worker directly to build ddk artifacts.
(2) Generates an outline file instead of a full dill file for ddc_sdk.dill.
(3) Fixes source maps in the shipped sdk so that urls from dart_sdk.js.map
have correct relative paths to dart files in the sdk. This won't work with
webdev/build as that copies and serves dart_sdk.js, but it will now be
able to build the sdk directly.
Change-Id: I7b9470fe18cac9b4343c7c520fe6ffd7bd9246b4
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/104842
Reviewed-by: Jake Macdonald <jakemac@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Vijay Menon <vsm@google.com>
Note, this has the effect of including all DDC Dart sources with the
shipped SDK: we ship everything under sdk/lib.
This should enable https://github.com/dart-lang/build/issues/2262
Change-Id: If66bc7c620034e7f2acf7d2c3e9524a408417681
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/104383
Commit-Queue: Vijay Menon <vsm@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
The flutter engine needs to switch to the full SDK to include web support. As written, the dartdevc rules do not work outside of the sdk repo
Bug: https://github.com/dart-lang/sdk/issues/35834
Change-Id: I3b7711cf1920d86b82ddc4f0959b447207f54751
Reviewed-on: https://dart-review.googlesource.com/c/93760
Reviewed-by: Vijay Menon <vsm@google.com>
Reviewed-by: Jenny Messerly <jmesserly@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Vijay Menon <vsm@google.com>
It's simply an alias for `dartdevc --kernel`, and now that build_runner
is switching to that, there's no reason to keep it around anymore.
Change-Id: I43d30a582314a236bcfa2e3a0b50bb48ddac79f8
Reviewed-on: https://dart-review.googlesource.com/c/88281
Auto-Submit: Jenny Messerly <jmesserly@google.com>
Commit-Queue: Vijay Menon <vsm@google.com>
Reviewed-by: Vijay Menon <vsm@google.com>
To allow ddc sdk kernel generation internally, add a way to provide
paths to dependent files explicitly, instead of assuming relative from
Platform.script.
Also remove .packages file parameter. We don't have this file internally
and sdk shouldn't depend on any of packages anyway, so it just work
without this option.
Change-Id: Iec892cbb640d35e64d107c6af36d214632815bae
Reviewed-on: https://dart-review.googlesource.com/c/77485
Commit-Queue: Sigmund Cherem <sigmund@google.com>
Reviewed-by: Jenny Messerly <jmesserly@google.com>
Auto-Submit: Ivan Naydonov <inayd@google.com>
Since dart2js is now strong-mode-only and ignores the --strong flag, I don't see the point in having 'strong' in the platform name.
Removed:
dart2js_platform
dart2js_server_platform
renamed:
dart2js_platform_strong --> dart2js_platform
dart2js_server_platform_strong --> dart2js_server_platform
Change-Id: If74ef31a17acc15a23a5338e5f53e820fc66b0dd
Reviewed-on: https://dart-review.googlesource.com/71425
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Vijay Menon <vsm@google.com>
Commit-Queue: Stephen Adams <sra@google.com>
- Switch the kernel isolate to run in Dart2 mode
- Refactor build rules so bootstrapping of the front end happens
with a prebuilt dart sdk
- Refactor application snapshot build rules so the kernel application
snapshot rule does not get into a cyclic dependency during the
bootstrap stage
Change-Id: Iccca3233f6cb8d6b307b4cf1ca3262f293f794a6
Reviewed-on: https://dart-review.googlesource.com/70841
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
This reverts commit 499761f0da.
Reason for revert: crashes when building SDK, red bots, broken Flutter 3xHEAD bot
Original change's description:
> [VM/SDK] Switch kernel isolate to run in Dart 2 mode
>
> - Switch the kernel isolate to run in Dart2 mode
> - Refactor build rules so bootstrapping of the front end happens
> with a prebuilt dart sdk
> - Refactor application snapshot build rules so the kernel application
> snapshot rule does not get into a cyclic dependency during the
> bootstrap stage
>
> Change-Id: I067c5f1165fb93811dcc8e390a8bf381db721e5b
> Reviewed-on: https://dart-review.googlesource.com/70461
> Reviewed-by: Siva Annamalai <asiva@google.com>
> Commit-Queue: Siva Annamalai <asiva@google.com>
TBR=rmacnak@google.com,asiva@google.com
Change-Id: Ibf6d526fb5132b766f063fcf873cde661ae895d7
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/70516
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
- Switch the kernel isolate to run in Dart2 mode
- Refactor build rules so bootstrapping of the front end happens
with a prebuilt dart sdk
- Refactor application snapshot build rules so the kernel application
snapshot rule does not get into a cyclic dependency during the
bootstrap stage
Change-Id: I067c5f1165fb93811dcc8e390a8bf381db721e5b
Reviewed-on: https://dart-review.googlesource.com/70461
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
This reverts commit b59583edea.
Reason for revert: <INSERT REASONING HERE>
Original change's description:
> Reland "[VM/SDK]"
>
> This is a reland of b4146411d0
>
> Original change's description:
> > [VM/SDK]
> >
> > - Switch the kernel isolate to run in Dart2 mode
> > - Refactor build rules so bootstrapping of the front end happens
> > with a prebuilt dart sdk
> > - Refactor application snapshot build rules so the kernel application
> > snapshot rule does not get into a cyclic dependency during the
> > bootstrap stage
> >
> > Change-Id: Id16b2859e0b299b2d689971d03a247cb94d0aa26
> > Reviewed-on: https://dart-review.googlesource.com/61660
> > Commit-Queue: Siva Annamalai <asiva@google.com>
> > Reviewed-by: Zach Anderson <zra@google.com>
>
> Change-Id: I2a3fa8ed4f331cf3de89ddff5cf8e478809dae39
> Reviewed-on: https://dart-review.googlesource.com/65841
> Reviewed-by: Siva Annamalai <asiva@google.com>
TBR=zra@google.com,asiva@google.com
# Not skipping CQ checks because original CL landed > 1 day ago.
Change-Id: I6077236481bec9089ead881c902036b0817114fc
Reviewed-on: https://dart-review.googlesource.com/66240
Reviewed-by: Siva Annamalai <asiva@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
This is a reland of b4146411d0
Original change's description:
> [VM/SDK]
>
> - Switch the kernel isolate to run in Dart2 mode
> - Refactor build rules so bootstrapping of the front end happens
> with a prebuilt dart sdk
> - Refactor application snapshot build rules so the kernel application
> snapshot rule does not get into a cyclic dependency during the
> bootstrap stage
>
> Change-Id: Id16b2859e0b299b2d689971d03a247cb94d0aa26
> Reviewed-on: https://dart-review.googlesource.com/61660
> Commit-Queue: Siva Annamalai <asiva@google.com>
> Reviewed-by: Zach Anderson <zra@google.com>
Change-Id: I2a3fa8ed4f331cf3de89ddff5cf8e478809dae39
Reviewed-on: https://dart-review.googlesource.com/65841
Reviewed-by: Siva Annamalai <asiva@google.com>
This reverts commit b4146411d0.
Reason for revert: Seems to have build issues on certain bots
Original change's description:
> [VM/SDK]
>
> - Switch the kernel isolate to run in Dart2 mode
> - Refactor build rules so bootstrapping of the front end happens
> with a prebuilt dart sdk
> - Refactor application snapshot build rules so the kernel application
> snapshot rule does not get into a cyclic dependency during the
> bootstrap stage
>
> Change-Id: Id16b2859e0b299b2d689971d03a247cb94d0aa26
> Reviewed-on: https://dart-review.googlesource.com/61660
> Commit-Queue: Siva Annamalai <asiva@google.com>
> Reviewed-by: Zach Anderson <zra@google.com>
TBR=zra@google.com,asiva@google.com
Change-Id: I4fc5b81e0a102bde4e8b4f737af3825e9728be3b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/65840
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
- Switch the kernel isolate to run in Dart2 mode
- Refactor build rules so bootstrapping of the front end happens
with a prebuilt dart sdk
- Refactor application snapshot build rules so the kernel application
snapshot rule does not get into a cyclic dependency during the
bootstrap stage
Change-Id: Id16b2859e0b299b2d689971d03a247cb94d0aa26
Reviewed-on: https://dart-review.googlesource.com/61660
Commit-Queue: Siva Annamalai <asiva@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
Now that the dartdevk tests are run using an SDK and packages also
built using kernel, the test packages have a different output directory.
Fixes https://github.com/dart-lang/sdk/issues/33652
Change-Id: I6da4ec8291794185356343791407e3a1c3cb2d7a
Reviewed-on: https://dart-review.googlesource.com/62741
Reviewed-by: Peter von der Ahé <ahe@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Updated to pass --dfe to invocations of the
checked-in SDK.
Change-Id: I47e122422926d235f166972669c8c2cb18a89735
Reviewed-on: https://dart-review.googlesource.com/62201
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Zach Anderson <zra@google.com>
The flaky errors
[215/296] ACTION //utils/dartdevc:stack_trace_mapper(//build/toolchain/linux:clang_x86)
FAILED: dev_compiler/build/web/dart_stack_trace_mapper.js
python ../../build/gn_run_binary.py compiled_action dart --packages=/b/s/w/ir/cache/builder/sdk/.packages /b/s/w/ir/cache/builder/sdk/pkg/compiler/lib/src/dart2js.dart /b/s/w/ir/cache/builder/sdk/pkg/dev_compiler/web/stack_trace_mapper.dart -m -o/b/s/w/ir/cache/builder/sdk/out/ReleaseIA32/dev_compiler/build/web/dart_stack_trace_mapper.js
Command failed: ./dart --packages=/b/s/w/ir/cache/builder/sdk/.packages /b/s/w/ir/cache/builder/sdk/pkg/compiler/lib/src/dart2js.dart /b/s/w/ir/cache/builder/sdk/pkg/dev_compiler/web/stack_trace_mapper.dart -m -o/b/s/w/ir/cache/builder/sdk/out/ReleaseIA32/dev_compiler/build/web/dart_stack_trace_mapper.js
output: Error while initializing Kernel isolate
[216/296] ACTION //utils/compiler:dart2js_create_snapshot_entry(//build/toolchain/linux:clang_x86)
FAILED: gen/utils/compiler/dart2js.dart
python ../../build/gn_run_binary.py compiled_action dart --packages=/b/s/w/ir/cache/builder/sdk/.packages /b/s/w/ir/cache/builder/sdk/utils/compiler/create_snapshot_entry.dart --output_dir=/b/s/w/ir/cache/builder/sdk/out/ReleaseIA32/gen/utils/compiler --dart2js_main=pkg/compiler/lib/src/dart2js.dart
Command failed: ./dart --packages=/b/s/w/ir/cache/builder/sdk/.packages /b/s/w/ir/cache/builder/sdk/utils/compiler/create_snapshot_entry.dart --output_dir=/b/s/w/ir/cache/builder/sdk/out/ReleaseIA32/gen/utils/compiler --dart2js_main=pkg/compiler/lib/src/dart2js.dart
output: Error while initializing Kernel isolate
[217/296] ACTION //utils/dartdevc:dartdevc_web(//build/toolchain/linux:clang_x86)
FAILED: dev_compiler/build/web/ddc_web_compiler.js
python ../../build/gn_run_binary.py compiled_action dart --packages=/b/s/w/ir/cache/builder/sdk/.packages /b/s/w/ir/cache/builder/sdk/pkg/compiler/lib/src/dart2js.dart /b/s/w/ir/cache/builder/sdk/pkg/dev_compiler/web/main.dart -m -o/b/s/w/ir/cache/builder/sdk/out/ReleaseIA32/dev_compiler/build/web/ddc_web_compiler.js
Command failed: ./dart --packages=/b/s/w/ir/cache/builder/sdk/.packages /b/s/w/ir/cache/builder/sdk/pkg/compiler/lib/src/dart2js.dart /b/s/w/ir/cache/builder/sdk/pkg/dev_compiler/web/main.dart -m -o/b/s/w/ir/cache/builder/sdk/out/ReleaseIA32/dev_compiler/build/web/ddc_web_compiler.js
output: Error while initializing Kernel isolate
could appear due to stale kernel service snapshot.
The problem is that dart_action() used when building snapshots for dart2js and DDC
uses kernel service snapshot in Dart 2 mode, but it can't depend on kernel service
as it will create a circular dependency.
The short-term solution is to add dependency on kernel service snapshot to the rules
which use dart_action().
Change-Id: Icfe9148e24342f199370a09293e93806027b2a39
Reviewed-on: https://dart-review.googlesource.com/61742
Reviewed-by: Zach Anderson <zra@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>
This uses optional new/const and `=` in named argument defaults.
All changes are automated, except for:
- utils/dartdevc/BUILD.gn: run DDC build scripts with --preview-dart-2
- pkg/dev_compiler/tool/patch_sdk.dart: add a TODO that Analyzer doesn't
supporting implicit const in libraries.dart
- pkg/dev_compiler/tool/input_sdk/libraries.dart: was not formatted due
to the aforementioned Analyzer bug
- tools/bots/test_matrix.json: run DDC sourcemap suite in Dart 2 mode
- pkg/pkg.status: skip pkg/dev_compiler if running in Dart 1 mode
Change-Id: I9b80ccba0c2cc7b66efc662a0b16562e3660aee3
Reviewed-on: https://dart-review.googlesource.com/60402
Commit-Queue: Jenny Messerly <jmesserly@google.com>
Reviewed-by: Bob Nystrom <rnystrom@google.com>
Currently we test dartdevk against SDK/packages that were compiled with
dartdevc (DDC+Analyzer). This CL migrates to having those files compiled
with DDC+Kernel. dartdevc testing is unchanged.
Most of the fixes are around things like special optimized annotations
used in our SDK code, that were not understood by DDK. Also some inline
JS type annoations were not correct.
Change-Id: Iccf4427e4b9beffd6d97a4be654253d91f6cb89e
Reviewed-on: https://dart-review.googlesource.com/57800
Reviewed-by: Vijay Menon <vsm@google.com>
Renames the target to dartdevk_sdk (to match dartdevc_sdk), and switches
dartdevk_sdk and dartdevc_test_pkg to use prebuilt_dart_action.
Change-Id: Ib31c85c46743a005bb95cf888055a4d093ffe07f
Reviewed-on: https://dart-review.googlesource.com/57481
Reviewed-by: Vijay Menon <vsm@google.com>
Commit-Queue: Jenny Messerly <jmesserly@google.com>
For Dart 2 snapshots, application_snapshots() hardcodes a deps on
//utils/kernel-service:copy_kernel_service_snapshot
related #33167
Change-Id: I9a598e83a3e8ebb9a27bfe83132f3a957f2fea0e
Reviewed-on: https://dart-review.googlesource.com/56161
Reviewed-by: Nate Bosch <nbosch@google.com>
Commit-Queue: Zach Anderson <zra@google.com>
This avoids conflicts with client repos that have a file
//build/compiled_action.gni with something different in them.
Change-Id: I133f66b0989bcb547cb8eed8710a88e2c1384bd7
Reviewed-on: https://dart-review.googlesource.com/53440
Commit-Queue: Zach Anderson <zra@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
These dependencies are tracked via a depfile generated along with the snapshot.
Change-Id: I4245a982212a5aff28aea8456d0219808df54af0
Reviewed-on: https://dart-review.googlesource.com/51245
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Also removes unsafe-force-compile for DDC's selfhost during snapshot
build, and fixes DDK's snapshot to train by selfhosting.
This does not enable preview-dart-2 for DDC/DDK's snapshots or on
the buildbots yet.
Change-Id: Id0b395eb67677d0e69dc5e827536a9039bc95816
Reviewed-on: https://dart-review.googlesource.com/51206
Commit-Queue: Jenny Messerly <jmesserly@google.com>
Reviewed-by: Leaf Petersen <leafp@google.com>
Change-Id: I8d59ab0752955b01a0ca81c998bb42b5d1d18d83
Reviewed-on: https://dart-review.googlesource.com/46741
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Peter von der Ahé <ahe@google.com>
This change shifts logic for invoking Dart scripts during the build
from a couple of python scripts to a new template called dart_action().
Change-Id: Ic0818122cd7317cbd22a7255d880fe8f87271b7e
Reviewed-on: https://dart-review.googlesource.com/39260
Commit-Queue: Zach Anderson <zra@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Also adds this to the build script, so we can eventually replace the existing SDK compile step with this new one.
Change-Id: Iba0720df5bbab302d2fdd0b5aeeb182de152cc98
Reviewed-on: https://dart-review.googlesource.com/32504
Commit-Queue: Jenny Messerly <jmesserly@google.com>
Reviewed-by: Vijay Menon <vsm@google.com>
related #31613
Change-Id: Ib01771cc85be37469e7cd862ec3b25f35769db90
Reviewed-on: https://dart-review.googlesource.com/30502
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Zach Anderson <zra@google.com>
The previous situtation of training it by running "--help" doesn't
give much.
This trains it on a small input file (i.e. theoretically not as good as
training it on big input file, but better than the --help situation).
On a local hack where I "forced" the compilation of dartdevc.dart itself
(i.e. a big input ifle) as the training, it shaved off a few extra
seconds, but nothing major.
This CL, running language_2 locally this takes it from
[04:08 | 100% | + 5171 | - 0]
to
[03:12 | 100% | + 5171 | - 0]
Bug:
Change-Id: I9397e11027be3dee3c080be7cdff22ea2f64b654
Reviewed-on: https://dart-review.googlesource.com/28622
Reviewed-by: Karl Klose <karlklose@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
Change-Id: Id13cc838b67785b12f95d19b480a6a830ad5c003
Reviewed-on: https://dart-review.googlesource.com/24120
Commit-Queue: Alexander Thomas <athom@google.com>
Commit-Queue: Karl Klose <karlklose@google.com>
Reviewed-by: Vijay Menon <vsm@google.com>
Reviewed-by: Alexander Thomas <athom@google.com>
This should, I hope, fix the debianpackage bot.
Change-Id: I39347cf64aba1d99c882d78bf7cf60483b3e85c5
Reviewed-on: https://dart-review.googlesource.com/22301
Reviewed-by: Zach Anderson <zra@google.com>
Commit-Queue: Bob Nystrom <rnystrom@google.com>
This involves a few main pieces:
- Add code to the GN scripts to generate DDC's patched SDK and then
compile it to summaries and JS in the build output directory.
- Add support to the underlying DDC build scripts to support controlling
which files are built where.
- Update test.dart to use the DDC SDK from the build directory.
- Update create_sdk to use the built SDK instead of the checked in one.
- Fix various internal DDC tools to build their own copy of the SDK
(since they can't easily find the one in the build directory because
it's path if config-specific) and use those.
- Delete the checked DDC SDK JS and summaries.
I think I got everything working. The built Dart SDK looks fine -- it's
identical to one built using the old build scripts.
The various tools and DDC's little test runner I *think* work, but there
may be a bug or two in there. I tried the various things I could and it
seems like they work but it's hard to tell since they may be kind of
broken right now anyway.
Bug:
Change-Id: Iea77915a5c1cc8450f60ebfbdf8c725c7ea2f32c
Reviewed-on: https://dart-review.googlesource.com/18144
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Zach Anderson <zra@google.com>
Reviewed-by: Vijay Menon <vsm@google.com>
This allows dartdevk to compile tests that import packages like expect.
There are a few pieces to this:
- Add support to build_pkgs.dart to build the kernel summaries for each
test package (in addition to the analyzer summaries it already
builds).
- Plumb that through the dartdevc_test target in the GN build as well.
- While we're at it, use GN to build the ddc_sdk.dill file and have
test.dart load that one instead of the manually built one from calling
./tool/kernel_sdk.dart.
- Add command-line arguments to dartdevk for passing in the path to the
SDK summary and the other summaries to compile against.
- Fix a little typo in processed_options.dart that was preventing it
from resolving "package:" URIs.
- In test.dart, when compiling a test, link in the summaries for all of
the test packages.
At runtime, it still uses the JS for those packages generated from the
old analyzer-based front end since the kernel-based compiler isn't
complete enough to compile any of those packages yet.
With all of this, if I change a test to:
import "package:expect/expect.dart";
main() {
Expect.equals("a", "b");
}
Then it compiles but fails at runtime. The compiler is completing, but
the generated code has some bugs. I don't know enough to fix them
myself, but here's what I've found out:
- In _libraryToModule(), the Library we get from kernel has a null
fileUri, so this returns an empty string. That in turn means the
generated JS tries to use "$" as the module name.
Using this works around it temporarily:
if (moduleName.isEmpty) moduleName = library.name;
- In _emitTopLevelNameNoInterop(), it doesn't handle the case where the
NamedNode is a static method on a class. It just generates the library
and method name, skipping the class, so "Expect.equals(1, 2)" gets
compiled to "expect.equals(1, 2)" instead of
"expect.Expect.equals(1, 2)".
Change-Id: I6bd9d98bc9706965160d8fb7cf70b20eeebab3a8
Reviewed-on: https://dart-review.googlesource.com/16687
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Vijay Menon <vsm@google.com>
This CL begins removing gyp from Dart's tree.
Removing gyp will go in three stages:
1. Remove unused .gyp and .gypi files.
2. Translate *_sources.gypi files to *_sources.gni files
3. Remove //third_party/gyp from DEPS
This CL is stage 1.
R=asiva@google.com
Review-Url: https://codereview.chromium.org/2992593002 .
This involves a few pieces:
- Add support to DDC for specifying the module name associated with a
given summary. This lets test.dart invoke DDC using summaries in the
build directory outside of the directory containing the test itself.
- Add support to the build scripts for building the packages. This adds
a new GN target that builds everything needed to run test.dart with
dartdevc. In particular, it invokes build_pkgs.dart to compile the
relevant packages to JS+summary so that the tests can use them.
This requires some changes to build_pkgs.dart so it can output to a
given directory.
- In test.dart, when tests are compiled with dartdevc, pass in the
summaries for the packages so they don't get compiled in. Then, when
the test is run, configure require.js with the right paths to their
JS files so they can be loaded.
I also removed a bunch of unneeded buildDir parameters being passed
around the various CompilerConfiguration class methods now that they
have direct access to the configuration.
Fix#29923.
R=vsm@google.com, whesse@google.com, zra@google.com
Review-Url: https://codereview.chromium.org/2955513002 .
These tools are used to support applying source maps to stack traces
and running the Dart dev compiler in the browser as part of an extension.
This CL adds the following files
dart-sdk/lib/dev_compiler/web/ddc_web_compiler.js
dart-sdk/lib/dev_compiler/web/dart_stack_trace_mapper
BUG=
R=rmacnak@google.com, vsm@google.com
Review-Url: https://codereview.chromium.org/2889253002 .
