Resubmit change 6302 after fixing the compiler warning on older GCC compiler versions:

vm/bitmap_test.cc

 // Copyright (c) 2012, 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/bitmap.h"
 #include "vm/object.h"
 #include "vm/unit_test.h"
 
 namespace dart {
@@ skipping 19 matching lines @@
   for (int32_t i = 0; i < 1024; i++) {
     bmap1_builder->Set(i, value);
     value = !value;
   }
   value = true;
   for (int32_t i = 0; i < 1024; i++) {
     EXPECT_EQ(value, bmap1_builder->Get(i));
     value = !value;
   }
   // Create a Bitmap object from the builder and verify it's contents.
-  const Stackmap& bmap1 = Stackmap::Handle(
-      Stackmap::New(0, Code::Handle(), bmap1_builder));
+  const Stackmap& bmap1 = Stackmap::Handle(Stackmap::New(0, bmap1_builder));
   EXPECT_EQ(1022, bmap1_builder->Maximum());
   EXPECT_EQ(0, bmap1_builder->Minimum());
   OS::Print("%s\n", bmap1.ToCString());
   value = true;
   for (int32_t i = 0; i < 1024; i++) {
     EXPECT_EQ(value, bmap1.IsObject(i));
     value = !value;
   }
   EXPECT(!bmap1.IsObject(2056));  // Out of range so returns false.
 
   // Test the SetRange function in the builder.
   bmap1_builder->SetRange(0, 256, false);
   bmap1_builder->SetRange(257, 1024, true);
   bmap1_builder->SetRange(1025, 2048, false);
   for (int32_t i = 0; i <= 256; i++) {
     EXPECT(!bmap1_builder->Get(i));
   }
   for (int32_t i = 257; i <= 1024; i++) {
     EXPECT(bmap1_builder->Get(i));
   }
   for (int32_t i = 1025; i <= 2048; i++) {
     EXPECT(!bmap1_builder->Get(i));
   }
-  const Stackmap& bmap2 = Stackmap::Handle(
-      Stackmap::New(0, Code::Handle(), bmap1_builder));
+  const Stackmap& bmap2 = Stackmap::Handle(Stackmap::New(0, bmap1_builder));
   EXPECT_EQ(1024, bmap1_builder->Maximum());
   EXPECT_EQ(257, bmap1_builder->Minimum());
   for (int32_t i = 0; i <= 256; i++) {
     EXPECT(!bmap2.IsObject(i));
   }
   for (int32_t i = 257; i <= 1024; i++) {
     EXPECT(bmap2.IsObject(i));
   }
   for (int32_t i = 1025; i <= 2048; i++) {
     EXPECT(!bmap2.IsObject(i));
@@ skipping 19 matching lines @@
   }
   for (int32_t i = 257; i <= 1024; i++) {
     EXPECT(bmap3_builder->Get(i));
   }
   for (int32_t i = 1025; i <= 2048; i++) {
     EXPECT(!bmap3_builder->Get(i));
   }
 }
 
 }  // namespace dart