Update prebuilt Dart SDK to 3.9.0-3.0.dev

Revert changes to experimental_features.yaml.

Change-Id: Ic0ee592d8ceb72cf9c450b8bb898e01e93e6dbdb
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/421840
Commit-Queue: Alexander Thomas <athom@google.com>
Reviewed-by: Paul Berry <paulberry@google.com>
Reviewed-by: Alexander Thomas <athom@google.com>
Auto-Submit: Ivan Inozemtsev <iinozemtsev@google.com>

DEPS

@@ -50,7 +50,7 @@ vars = {
   # Checked-in SDK version. The checked-in SDK is a Dart SDK distribution
   # in a cipd package used to run Dart scripts in the build and test
   # infrastructure, which is automatically built on the release commits.
-  "sdk_tag": "git_revision:4a4ff9fba9ca67e9406743a24a3c47ad64d9e9c2",
+  "sdk_tag": "git_revision:5a8921e0042c662ea2adbac35ea051dec20a5341",
 
   # co19 is a cipd package automatically generated for each co19 commit.
   # Use tests/co19/update.sh to update this hash.

pkg/_fe_analyzer_shared/lib/src/experiments/flags.dart

@@ -29,7 +29,7 @@ enum ExperimentalFlag {
       isEnabledByDefault: false,
       isExpired: false,
       experimentEnabledVersion: defaultLanguageVersion,
-      experimentReleasedVersion: const Version(3, 8)),
+      experimentReleasedVersion: defaultLanguageVersion),
 
   constantUpdate2018(
       name: 'constant-update-2018',
@@ -64,7 +64,7 @@ enum ExperimentalFlag {
       isEnabledByDefault: false,
       isExpired: false,
       experimentEnabledVersion: defaultLanguageVersion,
-      experimentReleasedVersion: const Version(3, 8)),
+      experimentReleasedVersion: defaultLanguageVersion),
 
   enhancedEnums(
       name: 'enhanced-enums',
@@ -99,7 +99,7 @@ enum ExperimentalFlag {
       isEnabledByDefault: false,
       isExpired: false,
       experimentEnabledVersion: defaultLanguageVersion,
-      experimentReleasedVersion: const Version(3, 8)),
+      experimentReleasedVersion: defaultLanguageVersion),
 
   inferenceUpdate1(
       name: 'inference-update-1',
@@ -127,7 +127,7 @@ enum ExperimentalFlag {
       isEnabledByDefault: false,
       isExpired: false,
       experimentEnabledVersion: defaultLanguageVersion,
-      experimentReleasedVersion: const Version(3, 8)),
+      experimentReleasedVersion: defaultLanguageVersion),
 
   inferenceUsingBounds(
       name: 'inference-using-bounds',
@@ -274,7 +274,7 @@ enum ExperimentalFlag {
       isEnabledByDefault: false,
       isExpired: false,
       experimentEnabledVersion: defaultLanguageVersion,
-      experimentReleasedVersion: const Version(3, 8)),
+      experimentReleasedVersion: defaultLanguageVersion),
 
   wildcardVariables(
       name: 'wildcard-variables',

pkg/analyzer/lib/src/dart/analysis/experiments.g.dart

@@ -212,7 +212,7 @@ class ExperimentalFeatures {
     isExpired: IsExpired.const_functions,
     documentation:
         'Allow more of the Dart language to be executed in const expressions.',
-    experimentalReleaseVersion: Version.parse('3.8.0'),
+    experimentalReleaseVersion: null,
     releaseVersion: null,
     channels: ["stable", "beta", "dev", "main"],
   );
@@ -268,7 +268,7 @@ class ExperimentalFeatures {
     isEnabledByDefault: IsEnabledByDefault.dot_shorthands,
     isExpired: IsExpired.dot_shorthands,
     documentation: 'Shorter dot syntax for static accesses.',
-    experimentalReleaseVersion: Version.parse('3.8.0'),
+    experimentalReleaseVersion: null,
     releaseVersion: null,
     channels: ["stable", "beta", "dev", "main"],
   );
@@ -325,7 +325,7 @@ class ExperimentalFeatures {
     isExpired: IsExpired.getter_setter_error,
     documentation:
         'Stop reporting errors about mismatching types in a getter/setter pair.',
-    experimentalReleaseVersion: Version.parse('3.8.0'),
+    experimentalReleaseVersion: null,
     releaseVersion: null,
     channels: ["stable", "beta", "dev", "main"],
   );
@@ -371,7 +371,7 @@ class ExperimentalFeatures {
     isEnabledByDefault: IsEnabledByDefault.inference_update_4,
     isExpired: IsExpired.inference_update_4,
     documentation: 'A bundle of updates to type inference.',
-    experimentalReleaseVersion: Version.parse('3.8.0'),
+    experimentalReleaseVersion: null,
     releaseVersion: null,
     channels: ["stable", "beta", "dev", "main"],
   );
@@ -605,7 +605,7 @@ class ExperimentalFeatures {
     isEnabledByDefault: IsEnabledByDefault.variance,
     isExpired: IsExpired.variance,
     documentation: 'Sound variance',
-    experimentalReleaseVersion: Version.parse('3.8.0'),
+    experimentalReleaseVersion: null,
     releaseVersion: null,
     channels: ["stable", "beta", "dev", "main"],
   );

pkg/front_end/lib/src/api_prototype/experimental_flags_generated.dart

@@ -81,7 +81,7 @@ class ExperimentalFlag {
       isExpired: false,
       enabledVersion: defaultLanguageVersion,
       experimentEnabledVersion: defaultLanguageVersion,
-      experimentReleasedVersion: const Version(3, 8));
+      experimentReleasedVersion: defaultLanguageVersion);
 
   static const ExperimentalFlag constantUpdate2018 = const ExperimentalFlag(
       name: 'constant-update-2018',
@@ -121,7 +121,7 @@ class ExperimentalFlag {
       isExpired: false,
       enabledVersion: defaultLanguageVersion,
       experimentEnabledVersion: defaultLanguageVersion,
-      experimentReleasedVersion: const Version(3, 8));
+      experimentReleasedVersion: defaultLanguageVersion);
 
   static const ExperimentalFlag enhancedEnums = const ExperimentalFlag(
       name: 'enhanced-enums',
@@ -161,7 +161,7 @@ class ExperimentalFlag {
       isExpired: false,
       enabledVersion: defaultLanguageVersion,
       experimentEnabledVersion: defaultLanguageVersion,
-      experimentReleasedVersion: const Version(3, 8));
+      experimentReleasedVersion: defaultLanguageVersion);
 
   static const ExperimentalFlag inferenceUpdate1 = const ExperimentalFlag(
       name: 'inference-update-1',
@@ -193,7 +193,7 @@ class ExperimentalFlag {
       isExpired: false,
       enabledVersion: defaultLanguageVersion,
       experimentEnabledVersion: defaultLanguageVersion,
-      experimentReleasedVersion: const Version(3, 8));
+      experimentReleasedVersion: defaultLanguageVersion);
 
   static const ExperimentalFlag inferenceUsingBounds = const ExperimentalFlag(
       name: 'inference-using-bounds',
@@ -361,7 +361,7 @@ class ExperimentalFlag {
       isExpired: false,
       enabledVersion: defaultLanguageVersion,
       experimentEnabledVersion: defaultLanguageVersion,
-      experimentReleasedVersion: const Version(3, 8));
+      experimentReleasedVersion: defaultLanguageVersion);
 
   static const ExperimentalFlag wildcardVariables = const ExperimentalFlag(
       name: 'wildcard-variables',

pkg/front_end/testcases/pubspec.yaml

@@ -2,5 +2,5 @@ name: front_end_testcases
 # This package is not intended for consumption on pub.dev. DO NOT publish.
 publish_to: none
 environment:
-  sdk: ^3.8.0-0
-resolution: workspace
+  sdk: ^3.9.0-0
+resolution: workspace

pubspec.yaml

@@ -11,7 +11,7 @@ environment:
   #
   # It needs to be updated before testing language features introduced in the
   # next language version.
-  sdk: ^3.8.0-0
+  sdk: ^3.9.0-0
 
 # These are the packages that are contained in the SDK.
 workspace:

tools/experimental_features.yaml

@@ -114,11 +114,9 @@ current-version: '3.9.0'
 
 features:
   variance:
-    experimentalReleaseVersion: '3.8.0'
     help: "Sound variance"
 
   const-functions:
-    experimentalReleaseVersion: '3.8.0'
     help: "Allow more of the Dart language to be executed in const expressions."
 
   macros:
@@ -145,15 +143,12 @@ features:
     help: "Augmentations - enhancing declarations from outside"
 
   inference-update-4:
-    experimentalReleaseVersion: '3.8.0'
     help: "A bundle of updates to type inference."
 
   dot-shorthands:
-    experimentalReleaseVersion: '3.8.0'
     help: "Shorter dot syntax for static accesses."
 
   getter-setter-error:
-    experimentalReleaseVersion: '3.8.0'
     help: "Stop reporting errors about mismatching types in a getter/setter pair."
 
   sound-flow-analysis: