Add deprecations notices to dart2native

Related to: https://github.com/dart-lang/sdk/issues/46100

Change-Id: I2bcd4aadfbc96fa6ba265aec04cd60e3e81eef41
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/199429
Commit-Queue: Michael Thomsen <mit@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Reviewed-by: Ben Konyi <bkonyi@google.com>
Reviewed-by: Devon Carew <devoncarew@google.com>

CHANGELOG.md

@@ -50,7 +50,15 @@
 
 #### Dart command line
 
-- The `dart create` command has been updated to create projects that use the new
+*   **Breaking Change** [#46100][]: The standalone `dart2native` has been marked
+deprecated, and now prints a warning message. It's replacement is the `dart
+compile exe` and `dart compile aot-snapshot` commands, which offer the same
+functionality. The `dart2native` tool will be discontinued (removed from the
+Dart SDK) in Dart 2.15.
+
+https://github.com/dart-lang/sdk/issues/46100
+
+* The `dart create` command has been updated to create projects that use the new
   'core' set of lints from `package:lints`. See https://dart.dev/go/core-lints
   for more information about these lints.
 

sdk/bin/dart2native

@@ -5,6 +5,8 @@
 
 # Run dart2native.dart.snapshot on the Dart VM
 
+echo "Warning: 'dart2native' is deprecated. Please use 'dart compile exe'." 1>&2
+
 function follow_links() {
   file="$1"
   while [ -h "$file" ]; do

sdk/bin/dart2native.bat

@@ -3,6 +3,8 @@ REM Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
 REM for details. All rights reserved. Use of this source code is governed by a
 REM BSD-style license that can be found in the LICENSE file.
 
+echo Warning: 'dart2native' is deprecated. Please use 'dart compile exe'. 1>&2
+
 setlocal
 rem Handle the case where dart-sdk/bin has been symlinked to.
 set DIR_NAME_WITH_SLASH=%~dp0

tools/bots/aot_smoke_tests.dart

@@ -15,12 +15,11 @@ import 'package:path/path.dart' as path;
 import 'package:test/test.dart';
 
 final String newline = Platform.isWindows ? '\r\n' : '\n';
-final String scriptSuffix = Platform.isWindows ? ".bat" : "";
 final String executableSuffix = Platform.isWindows ? ".exe" : "";
 final String sdkBinDir = path.dirname(Platform.executable);
 final String dartaotruntime =
     path.join(sdkBinDir, 'dartaotruntime${executableSuffix}');
-final String dart2native = path.join(sdkBinDir, 'dart2native${scriptSuffix}');
+final String dart = path.join(sdkBinDir, 'dart${executableSuffix}');
 
 Future<void> withTempDir(Future fun(String dir)) async {
   final Directory tempDir = Directory.systemTemp.createTempSync();
@@ -32,14 +31,14 @@ Future<void> withTempDir(Future fun(String dir)) async {
 }
 
 void main(List<String> args) {
-  test("dart2native: Can compile and run AOT", () async {
+  test("Dart native: Can compile and run AOT snapshot", () async {
     await withTempDir((String tmp) async {
       final String testCode = path.join('tools', 'bots', 'dart_aot_test.dart');
       final String tmpAot = path.join(tmp, 'dart_aot_test.aot');
 
       {
-        final ProcessResult result = await Process.run(dart2native,
-            [testCode, '--output', tmpAot, '--output-kind', 'aot']);
+        final ProcessResult result = await Process.run(
+            dart, ['compile', 'aot-snapshot', testCode, '--output', tmpAot]);
         expect(result.stderr, '');
         expect(result.exitCode, 0);
       }
@@ -55,14 +54,14 @@ void main(List<String> args) {
     });
   });
 
-  test("dart2native: Can compile and run exe", () async {
+  test("Dart native: Can compile and run exe", () async {
     await withTempDir((String tmp) async {
       final String testCode = path.join('tools', 'bots', 'dart_aot_test.dart');
       final String tmpExe = path.join(tmp, 'dart_aot_test.exe');
 
       {
-        final ProcessResult result =
-            await Process.run(dart2native, [testCode, '--output', tmpExe]);
+        final ProcessResult result = await Process.run(
+            dart, ['compile', 'exe', testCode, '--output', tmpExe]);
         expect(result.stderr, '');
         expect(result.exitCode, 0);
       }
@@ -77,27 +76,27 @@ void main(List<String> args) {
     });
   });
 
-  test("dart2native: Returns non-zero on missing file.", () async {
+  test("Dart native: Returns non-zero on missing file.", () async {
     await withTempDir((String tmp) async {
       final String testCode = path.join(tmp, 'does_not_exist.dart');
       final String tmpExe = path.join(tmp, 'dart_aot_test.exe');
 
       {
-        final ProcessResult result =
-            await Process.run(dart2native, [testCode, '--output', tmpExe]);
+        final ProcessResult result = await Process.run(
+            dart, ['compile', 'exe', testCode, '--output', tmpExe]);
         expect(result.exitCode, isNonZero);
       }
     });
   });
 
-  test("dart2native: Returns non-zero on non-file.", () async {
+  test("Dart native: Returns non-zero on non-file.", () async {
     await withTempDir((String tmp) async {
       final String testCode = tmp; // This is a directory, not a file.
       final String tmpExe = path.join(tmp, 'dart_aot_test.exe');
 
       {
-        final ProcessResult result =
-            await Process.run(dart2native, [testCode, '--output', tmpExe]);
+        final ProcessResult result = await Process.run(
+            dart, ['compile', 'exe', testCode, '--output', tmpExe]);
         expect(result.exitCode, isNonZero);
       }
     });

tools/bots/dart_aot_test.dart

@@ -3,7 +3,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-// Test program for Dart AOT (dart2native, dartaotruntime).
+// Test program for Dart AOT (dart compile, dartaotruntime).
 
 void main(List<String> args) async {
   final String who = !args.isEmpty ? args[0] : '世界';