Roll Dart to 0cc70c4a7c448078dd2aea8e45c56bc50fbbb31c. (#5133)

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': 'cd0c4e4fe1e5b69ac15c0a670f9dde2ee9733fc7',
+  'dart_revision': '0cc70c4a7c448078dd2aea8e45c56bc50fbbb31c',
 
   'dart_args_tag': '1.4.1',
   'dart_async_tag': '2.0.6',

runtime/dart_isolate.cc

@@ -661,6 +661,8 @@ DartIsolate::CreateDartVMAndEmbedderObjectPair(
                                    ->GetSnapshotPointer(),  //
                                embedder_isolate->GetIsolateSnapshot()
                                    ->GetInstructionsIfPresent(),  //
+                               nullptr,                           //
+                               nullptr,                           //
                                flags,                             //
                                embedder_isolate.get(),            //
                                error                              //

travis/licenses_golden/licenses_third_party

-Signature: 4ee20ccd68bd898cbc841e690a6285f7
+Signature: 316af4c9992c358f8828e78e0ad2855e
 
 UNUSED LICENSES:
 
@@ -6037,6 +6037,7 @@ FILE: ../../../third_party/dart/runtime/vm/compiler/compiler_pass.cc
 FILE: ../../../third_party/dart/runtime/vm/compiler/compiler_pass.h
 FILE: ../../../third_party/dart/runtime/vm/datastream.cc
 FILE: ../../../third_party/dart/runtime/vm/finalizable_data.h
+FILE: ../../../third_party/dart/runtime/vm/hash.h
 FILE: ../../../third_party/dart/runtime/vm/type_testing_stubs.cc
 FILE: ../../../third_party/dart/runtime/vm/type_testing_stubs.h
 FILE: ../../../third_party/dart/sdk/lib/js/_js.dart