Manual Roll of Dart 39e0e75...ce62ad2 (#18211)

dart-lang/sdk@39e0e75fcf Remove ElementSuggestionBuilder
dart-lang/sdk@2707880f1b [vm] Fix various UBSan failures.
dart-lang/sdk@8c79102889 [vm/isolates] Move saved_initial_field_table to isolate group.
dart-lang/sdk@9eff98594f Cleanup unnecessary references to experiments that are enabled by default
dart-lang/sdk@d4514bef78 Bypass pub constraint validation for dartfix 0.1.7.
dart-lang/sdk@30da9d580b Ensure new analysis drivers are seeded with existing priority files
dart-lang/sdk@f16663a678 Convert LocalReferenceContributor to use SuggestionBuilder
dart-lang/sdk@7cbd5f6f78 [cfe] Add round-trip serialization support for loop nodes
dart-lang/sdk@9491c6cc48 [dart2js] Fix codegen/variance_subtype_cast_test

Author: a-siva

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': 'ce62ad2e8b408d3bf63eebb8608fba91d1b2d524',
+  'dart_revision': '39e0e75fcf141b9948c35cf068df475a9ed8f10c',
 
   # 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

@@ -1,4 +1,4 @@
-Signature: f41a99f8702a777931b9e7723e371557
+Signature: 57a846765a2b3f648f86b9ac99a22ed3
 
 UNUSED LICENSES:
 
@@ -7719,6 +7719,8 @@ FILE: ../../../third_party/dart/runtime/bin/dartdev_utils.h
 FILE: ../../../third_party/dart/runtime/bin/exe_utils.cc
 FILE: ../../../third_party/dart/runtime/bin/exe_utils.h
 FILE: ../../../third_party/dart/runtime/observatory/bin/heap_snapshot.dart
+FILE: ../../../third_party/dart/runtime/platform/unaligned.h
+FILE: ../../../third_party/dart/runtime/platform/undefined_behavior_sanitizer.h
 FILE: ../../../third_party/dart/runtime/tools/wiki/xref_extractor/bin/main.dart
 FILE: ../../../third_party/dart/runtime/tools/wiki/xref_extractor/lib/cquery_driver.dart
 FILE: ../../../third_party/dart/runtime/tools/wiki/xref_extractor/lib/xref_extractor.dart