Revert "Roll src/third_party/dart a0290f823c..c1e2df8f36 (3 commits)" (#8925)

This reverts commit 6ed91ce8.

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': 'c1e2df8f36cab02923d21dfe2bcd3dba113599ad',
+  'dart_revision': 'a0290f823c53df70643a8e46bf946020d2bbe37d',
 
   # 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: 9a0eb23757ed85781a53fbe860655dda
+Signature: b2b620bcb64f5da21d84ec2829a0f4e8
 
 UNUSED LICENSES:
 
@@ -4608,7 +4608,6 @@ FILE: ../../../third_party/dart/runtime/observatory/web/favicon.ico
 FILE: ../../../third_party/dart/runtime/observatory/web/index.html
 FILE: ../../../third_party/dart/runtime/observatory/web/third_party/trace_viewer_full.html
 FILE: ../../../third_party/dart/runtime/observatory/web/timeline.html
-FILE: ../../../third_party/dart/runtime/vm/compiler/ffi_dbc_trampoline_x64_linux_mac.S
 FILE: ../../../third_party/dart/samples/ffi/sqlite/docs/lib/scenario-default.svg
 FILE: ../../../third_party/dart/samples/ffi/sqlite/docs/lib/scenario-full.svg
 FILE: ../../../third_party/dart/sdk/lib/html/html_common/conversions_dart2js.dart
@@ -5135,7 +5134,6 @@ FILE: ../../../third_party/dart/runtime/bin/ifaddrs-android.h
 FILE: ../../../third_party/dart/runtime/bin/namespace_fuchsia.h
 FILE: ../../../third_party/dart/runtime/bin/socket_base_android.cc
 FILE: ../../../third_party/dart/runtime/lib/ffi.cc
-FILE: ../../../third_party/dart/runtime/lib/ffi.h
 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
@@ -5163,7 +5161,6 @@ FILE: ../../../third_party/dart/runtime/vm/compiler/backend/type_propagator_test
 FILE: ../../../third_party/dart/runtime/vm/compiler/backend/typed_data_aot_test.cc
 FILE: ../../../third_party/dart/runtime/vm/compiler/ffi.cc
 FILE: ../../../third_party/dart/runtime/vm/compiler/ffi.h
-FILE: ../../../third_party/dart/runtime/vm/compiler/ffi_dbc_trampoline.h
 FILE: ../../../third_party/dart/runtime/vm/compiler/graph_intrinsifier.cc
 FILE: ../../../third_party/dart/runtime/vm/compiler/graph_intrinsifier.h
 FILE: ../../../third_party/dart/runtime/vm/compiler/graph_intrinsifier_arm.cc