analyzer

• Pull fix in kernel package where non-executable util.dart was moved out of bin/.

• Improved const evaluation analysis (new errors for const A(B()) if B is non-const).
• Parser recovery improvements.

• The Parser() class now by default will parse with optional new or const. This affects many APIs, for instance, analyzer.dart's parseCompilationUnit().
• Add the ability to specify a pathContext when creating a ContextRoot (not part of the officially supported API, but needed by some clients).
• AnalysisSession now exports resourceProvider.
• Function type parameters are now invariant. (#29014)
• New logic to find source files generated by package:build when that build system is detected.
• Data stored by FileDataStore is now checked using CRC32.
• Add ability for the angular plugin to set ErrorVerifier.enclosingClass.

• Allow annotations on enum constants.
• Analyzer fully supports being run on the VM with --preview-dart-2.
• Fix heap usage regression by not storing bytes in the file cache.
• Add AnalysisSessionHelper.getTopLevelPropertyAccessor().
• Don't infer types when there's an irreconcilable type mismatch (#32305)
• Many fasta parser improvements.
• Use @isTest and @isTestGroup to understand executable element as a test/group. To use, add @isTest annotations (from package:meta) to the methods in their package which define a test.

@isTest
void myMagicTest(String name, FutureOr Function() body) {
  test(name, body);
}

When subscribed to notifications for outlines of a test file, they will include elements for UNIT_TEST_GROUP and UNIT_TEST_TEST.

• Improve guess for type name identifier. (#32765)
• Fix LineInfo.getOffsetOfLineAfter().
• Remove some flutter specific analysis code.
• Fix resolution tests when run locally.

• Refactoring to make element model logic sharable with linker. (#32525, #32674)
• Gracefully handle an invalid packages file. (#32560)
• Fix silent inconsistency in top level inference. (#32394)
• Fix test to determine whether a library is in the SDK. (#32707)
• Fix for type inference from instance creation arguments.
• Make GenericFunctionTypeElementForLink implement GenericFunctionTypeElementImpl (#32708)
• Check for missing required libraries dart:core and dart:async. (#32686)
• Add callable object support. (#32156, #32157, #32426)
• Avoid putting libraries of all analyzed units in the current session. (too expensive)
• Deprecate the option to enable using a URI in a part-of directive.
• Support implicit call() invocation in top-level inference. (#32740)
• Don't emit errors for lint rule names.
• Allow empty flutter: sections in pubspec files.
• Remove the special casing of 'packages' files from the analyzer and analysis server.
• Initial implementation of API to build analysis contexts (replacing ContextLocator.locateContexts).
• Fix regression in Analyzer callable function support. (#32769)
• Several performance enhancements, including:
  • Add a shared cache of FileState contents (making flutter repo analysis ~12% faster).
  • Replace SourceFactory.resolveUri() with resolveRelativeUri() in resynthesizer. (10% faster flutter repo analysis)
  • Optimize computing exported namespaces in FileState.
  • Optimize computing exported namespaces in prelinker. (8% faster flutter repo analysis)
  • Add NodeLintRule and UnitLintRule that replace AstVisitor in lints. (6% faster flutter repo analysis)
• Remove fuzzy arrow support from analyzer. (#31637)
• More fixes for running the analyzer with Dart 2.
• Add isXYZ accessors to ParameterElementForLink_VariableSetter. (#32896)
• Demote IMPORT_DUPLICATED_LIBRARY_NAMED to a warning.
• Deprecated/removed some unused classes and libraries from the public API.
• Instantiate bounds to bounds.
• Use package:path instead of AbsolutePathContext.
• Check that argument is assignable to parameter in call() (#27098)
• preview-dart-2 is now the default for the command line analyzer, also implying strong. Use --no-strong and --no-preview-dart-2 to handle Dart 1 code.
• Export SyntheticBeginToken and SyntheticToken from the analyzer for angular_analyzer_plugin.
• Improve error messages for annotations involving undefined names (#27788)
• Add support for getting parse results synchronously.
• Change linter subscriptions from functions to AstVisitor(s).

• Don't expect type arguments for class type parameters of static methods. (#32396)
• Beginnings of changes to make analyzer code --preview-dart-2 safe, though this version is not vetted for that.
• Infer type arguments in constructor redirections (#30855)
• Report errors on "as void" and "is void".
• Fix instantiating typedefs to bounds (#32114)
• preview-dart-2 implies strong-mode now and other preview-dart-2 fixes.
• Store method invocation arguments in summaries when needed for inference (partial fix for #32394)
• Fix top-level inference and implicit creation (#32397)
• Do not hint when only a responsive asset exists (#32250)
• Do not hint when using a deprecated parameter in the defining function (#32468)
• Fix parsing of super expressions (#32393)
• Disable conflicting generics test in the task model (#32421)
• Change how we find analysis roots (#31343, #31344)
• Fix problem with AST re-writing interacting poorly with inference (#32342)
• Disallow if a class inconsistently implements a generic interface.
• Infer void for operator[]= return in task mode for DDC (#32241)
• Finish and improve mixin type inference in the analyzer (#32146, #32353, #32372)
• Many enhancements to getElementDeclarations() (#29510, #32495)
• Remove hint when there's no return from a Future<void> and async method.
• Add a code range to ElementDeclaration (#29510)
• Many, many fasta parser changes and improvements.
• Add missing void annotation (#32161)
• Add more null-aware hints (#32239)
• Fix implicit new/const computation (#32221)
• Treat invocations on dynamic as unknown, except for return type of == (#32173)
• Fix crash in generic function type argument of unresolved class (#32162)
• Fix path formatting on windows (#32095)
• front_end implementation of mixin type inference (#31984)
• analysis_options no longer breaks some properties (#31345)

• front_end handling of callable classes (#32064)
• Improve fasta parser error reporting.
• Check for unresolved imports to improve handling of optional new/const (#32150).
• Changes to front_end handling of callable classes.
• Normalize Windows drive letters to uppercase for analysis (#32095, #32042, #28895).
• Relax void errors: no error assigning void to void variable.
• Keep unresolved import/export directives for task based analysis (dart-lang/angular#801).
• Promote TOP_LEVEL_CYCLE to an error.
• Code cleanups.

• Update to reflect that _InternalLinkedHashMap is not a subtype of HashMap in sdk 2.0.0-dev.22.0.

• Update SDK constraint to require Dart v2-dev release.

• Changed the API for creating BazelWorkspace. It should now be constructed using BazelWorkspace.find(). Note that this might return null in the event that the given path is not part of a BazelWorkspace.
• Added an AST structure to support asserts in constructor initializers (AssertInitializer). AstVisitor classes must now implement visitAssertInitializer().
• Changed the API for creating PartOfDirective. It now accepts a StringLiteral URI, to accommodate "part of" declarations with a URI string rather than a library name.
• Removed AST constructors. AST nodes should now be created using astFactory, located in package:analyzer/dart/ast/standard_ast_factory.dart.

• Removed Element.docRange.

• Corresponds with the analyzer/server in the 1.20.0-dev.1.0 SDK.

• Fixed PubSummaryManager linking when a listed package does not have the unlinked bundle.

• Added support for 'analysis_options.yaml' files as an alternative to '.analysis_options' files.

• Added support for running the dev compiler in the browser.

• Support for references to operators in doc comments (#26929).

• Support for trailing commas in parameter and argument lists (#26647).
• Strong mode breaking change: can now infer generic type arguments from the constructor invocation arguments (#25220).

• (Internal) Corresponds with the analyzer/server in the 1.18.0-dev.4.0 SDK.

• Restore EmbedderUriResolver API.

• Ignore processing performance improvements.
• EmbedderUriResolver API updates.