Roll src/third_party/dart 300c3333d1..7bbfd532de (5 commits)

dart-lang/sdk@7bbfd532de [vm, reload] Remove _getUnusedChangesInLastReload.
dart-lang/sdk@abb606e613 [release] Update checked in SDKs to 2.5.0
dart-lang/sdk@24857b773a fix for prefer_spread_collections
dart-lang/sdk@fa099eb717 Look for both getter and setter in the hierarchy before looking for extension.
dart-lang/sdk@331271d405 Set id(s) for GenericFunctionType(s) in constructor initializers and default values.

DEPS

@@ -34,7 +34,7 @@ vars = {
   # Dart is: https://github.com/dart-lang/sdk/blob/master/DEPS.
   # You can use //tools/dart/create_updated_flutter_deps.py to produce
   # updated revision list of existing dependencies.
-  'dart_revision': '300c3333d17676fb45638963b3cb9086972bf3cc',
+  'dart_revision': '7bbfd532de0a6a2243f025c302eba281e9a4eb7a',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
@@ -377,7 +377,7 @@ deps = {
    Var('dart_git') + '/package_resolver.git' + '@' + Var('dart_package_resolver_tag'),
 
   'src/third_party/dart/tools/sdks':
-   {'packages': [{'version': 'version:2.5.0-dev.1.0', 'package': 'dart/dart-sdk/${{platform}}'}], 'dep_type': 'cipd'},
+   {'packages': [{'version': 'version:2.5.0', 'package': 'dart/dart-sdk/${{platform}}'}], 'dep_type': 'cipd'},
 
   # WARNING: end of dart dependencies list that is cleaned up automatically - see create_updated_flutter_deps.py.
 

ci/licenses_golden/licenses_third_party

-Signature: 1d180d64741ad59164c869782c120442
+Signature: 4c2891d70c972ddf74c21c12d2a6cd1d
 
 UNUSED LICENSES: