Roll src/third_party/dart b52d264f5b2f..05e70d5b38cb (17 commits)

[skia-flutter-autoroll]

https://dart.googlesource.com/sdk.git/+log/b52d264f5b2f..05e70d5b38cb

git log b52d264..05e70d5 --date=short --first-parent --format='%ad %ae %s'
2019-12-30 [email protected] [infra] Add unapproved failures test to builder status script
2019-12-30 [email protected] [vm/io] add endian.host to RawSocketOption.fromInt
2019-12-30 [email protected] analyzer: move tests for 10 error codes to separate files
2019-12-30 [email protected] analyzer: Fix duplicate error-reporting with duplicate field formals
2019-12-30 [email protected] analyzer: move 'non-error' tests for 12 codes to separate files
2019-12-30 [email protected] Remove reporting duplicate CompileTimeErrorCode.CONST_NOT_INITIALIZED from ConstructorFieldsVerifier.
2019-12-30 [email protected] [analyzer] improve the cursor insertion position for required params
2019-12-30 [email protected] Simplify SyntheticIdentifier to partial SimpleIdentifier.
2019-12-30 [email protected] Remove 'referencingLibrary' from several Scope.lookupX() methods.
2019-12-29 [email protected] Add canReferenceElementWithoutThisPrefix() to LinterContext.
2019-12-29 [email protected] [analyzer] fix an issue with the missing_required_param warning ending in two periods
2019-12-29 [email protected] Add a fix for prefer_if_null_operators
2019-12-29 [email protected] [analyzer] insert missing params before child/children
2019-12-28 [email protected] Migration: teach FixBuilder to add the required keyword when necessary.
2019-12-28 [email protected] [nnbd_migration] Handle invokeType on function invocation expression
2019-12-28 [email protected] Enable unnecessary_this in several packages
2019-12-28 [email protected] Update the generators to not generate unnecessary uses of "this"

Created with:
gclient setdep -r src/third_party/dart@05e70d5b38cb

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[skia-flutter-autoroll]

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