Roll src/third_party/dart c92d5ca288..7a63d31151 (6 commits) (#7955)

7a63d31151 Improve the message when importing a deprecated library (issue 35922)
30f9f5b1c7 Add SetOrMapLiteral to support the code-as-ui features
1c534d852c Clean up the tutorial related to implementing a visitor
7f2f840a91 Don't include constants of private enums.
7329247892 [vm/tools] Add Graph Explorer to visualize output of --write_v8_snapshot_profile_to.
5d71308b78 [vm/tools] Don't duplicate "problems" metadata into split package files.

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': 'c92d5ca288da15b54b04c0a40ffe5d94a8883d77',
+  'dart_revision': '7a63d31151e4c18505df910c564be171fa6f7330',
 
   # 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: a76c88a9ff389b1401e9df71fb13c1f6
+Signature: cc36b7aa35de39c80eb1abf7a71a88d8
 
 UNUSED LICENSES:
 
@@ -5707,6 +5707,8 @@ FILE: ../../../third_party/dart/runtime/lib/ffi_dynamic_library.cc
 FILE: ../../../third_party/dart/runtime/lib/ffi_dynamic_library_patch.dart
 FILE: ../../../third_party/dart/runtime/lib/ffi_native_type_patch.dart
 FILE: ../../../third_party/dart/runtime/lib/ffi_patch.dart
+FILE: ../../../third_party/dart/runtime/tools/graphexplorer/graphexplorer.html
+FILE: ../../../third_party/dart/runtime/tools/graphexplorer/graphexplorer.js
 FILE: ../../../third_party/dart/runtime/vm/class_id.h
 FILE: ../../../third_party/dart/runtime/vm/code_entry_kind.h
 FILE: ../../../third_party/dart/runtime/vm/compiler/asm_intrinsifier.cc