VM(RegExp): Allow OSR optimization of RegExp :matcher functions.

runtime/vm/runtime_entry.cc

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/runtime_entry.h"
 
 #include "vm/assembler.h"
 #include "vm/ast.h"
 #include "vm/code_patcher.h"
 #include "vm/compiler.h"
@@ skipping 2325 matching lines @@
   const Object& value = Object::Handle(arguments.ArgAt(1));
   field.RecordStore(value);
 }
 
 
 DEFINE_RUNTIME_ENTRY(InitStaticField, 1) {
   const Field& field = Field::CheckedHandle(arguments.ArgAt(0));
   field.EvaluateInitializer();
 }
 
-
-DEFINE_RUNTIME_ENTRY(GrowRegExpStack, 1) {
-  const Array& typed_data_cell = Array::CheckedHandle(arguments.ArgAt(0));
-  ASSERT(!typed_data_cell.IsNull() && typed_data_cell.Length() == 1);
-  const TypedData& old_data = TypedData::CheckedHandle(typed_data_cell.At(0));
-  ASSERT(!old_data.IsNull());
-  const intptr_t cid = old_data.GetClassId();
-  const intptr_t old_size = old_data.Length();
-  const intptr_t new_size = 2 * old_size;
-  const intptr_t elm_size = old_data.ElementSizeInBytes();
-  const TypedData& new_data =
-      TypedData::Handle(TypedData::New(cid, new_size, Heap::kOld));
-  TypedData::Copy(new_data, 0, old_data, 0, old_size * elm_size);
-  typed_data_cell.SetAt(0, new_data);
-  arguments.SetReturn(new_data);
-}
-
 }  // namespace dart