Turn the VM's dart:typed_data into a patch

runtime/vm/dart_api_impl.cc

Index: runtime/vm/dart_api_impl.cc
diff --git a/runtime/vm/dart_api_impl.cc b/runtime/vm/dart_api_impl.cc
index 2bec82533531ee0781624ea9868de20ec54dcead..8accfa3f13edb7a1d23197cae27ce0367b52b777 100644
--- a/runtime/vm/dart_api_impl.cc
+++ b/runtime/vm/dart_api_impl.cc
@@ -3558,8 +3558,8 @@ DART_EXPORT Dart_Handle Dart_NewByteBuffer(Dart_Handle typed_data) {
     RETURN_TYPE_ERROR(Z, typed_data, 'TypedData');
   }
   Object& result = Object::Handle(Z);
-  result = GetByteBufferConstructor(T, Symbols::ByteBuffer(),
-                                    Symbols::ByteBufferDot_New(), 1);
+  result = GetByteBufferConstructor(T, Symbols::_ByteBuffer(),
+                                    Symbols::_ByteBufferDot_New(), 1);
   ASSERT(!result.IsNull());
   ASSERT(result.IsFunction());
   const Function& factory = Function::Cast(result);