Simplify the VM's typed_data constructors.

runtime/vm/profiler_test.cc

 // Copyright (c) 2013, 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 "platform/assert.h"
 
 #include "vm/dart_api_impl.h"
 #include "vm/dart_api_state.h"
 #include "vm/globals.h"
 #include "vm/profiler.h"
@@ skipping 971 matching lines @@
     HANDLESCOPE(thread);
     Profile profile(isolate);
     AllocationFilter filter(isolate, float32_list_class.id());
     profile.Build(thread, &filter, Profile::kNoTags);
     // We should have one allocation sample.
     EXPECT_EQ(1, profile.sample_count());
     ProfileTrieWalker walker(&profile);
 
     walker.Reset(Profile::kExclusiveCode);
     EXPECT(walker.Down());
-    EXPECT_STREQ("_Float32Array._new", walker.CurrentName());
-    EXPECT(walker.Down());
     EXPECT_STREQ("_Float32Array._Float32Array", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("Float32List.Float32List", walker.CurrentName());
     EXPECT(walker.Down());
     EXPECT_STREQ("foo", walker.CurrentName());
     EXPECT(!walker.Down());
   }
 
   float32_list_class.SetTraceAllocation(false);
   result = Dart_Invoke(lib, NewString("foo"), 0, NULL);
@@ skipping 1293 matching lines @@
     EXPECT_EQ(1, walker.CurrentInclusiveTicks());
     EXPECT_EQ(0, walker.CurrentExclusiveTicks());
     EXPECT_STREQ("bacon", walker.CurrentToken());
     EXPECT(!walker.Down());
   }
 }
 
 #endif  // !PRODUCT
 
 }  // namespace dart