Roll src/third_party/dart 1e82544b07..75b2f9f919 (26 commits)

75b2f9f919 Move more HintCode tests to individual files:
acb62b97fe Add a default URL for lints
3fd124db1f [vm] Repair the resolver abstraction.
e979448597 Patch expectations for tests where AST linking does better / differently.
1e77c187c8 Update front-end status for added tests and changed results
87de68341f [CFE] Disallow property access on instance constants.
4ae5b272cb [vm/bytecode/compiler] Fix dropping of expression stack values when generating Throw
1a3e8dda3b Handle nested unevaluated constants in constant evaluator
277f65ec93 [CFE] Permit evaluating a const variable more than once.
a88b653e03 [CFE] Bubble out InvalidExpression from unevaluated constants.
05dd851566 Test late CFE constant evaluation.
413315cacd Add some tests for constants.
dc1f6b352a Update front-end status for co19 roll
154c324786 [vm/ffi] Lock out structs on 32-bit platforms.
79bb83a927 [infra] Fix debianpackage build
a062221b76 [vm] Re-number class ids for internal/external typed data and typed data views
c14a15bad1 Remove third_party/google_test from index
66f16d3d5e Resynthesize import/export combinators.
4e3d1400d5 Resynthesize ImportElement.isDeferred from AST.
8a5901a7af Support for isCovariant in fields.
9113bb5855 Issue 36380. Increment DATA_VERSION.
e6b0676f58 Change comment style in a few more files
94362f1af0 [vm] Unify internal/external/view typed data into new RawTypedDataBase class
c7dd9c1c23 Perform top-level inference using elements.
cd34ec901c [gardening] Flutter patch is no longer needed.
3642eddca1 Create an experiment flag for triple-shift and move existing support for the operator behind the new flag

DEPS

@@ -31,7 +31,7 @@ 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': '1e82544b07f13394da8da305858de5ab7caae7ad',
+  'dart_revision': '75b2f9f919e5728902aff39a09223d1cc9402585',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py

ci/licenses_golden/licenses_third_party

-Signature: 4fbe06d52d386154c027097dac450ce8
+Signature: 56ea8d814aee503d5f73adb0a7f1c6fd
 
 UNUSED LICENSES: