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

vm/bitmap.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 "vm/bitmap.h"
 
 #include "platform/assert.h"
 #include "vm/object.h"
 
 namespace dart {
@@ skipping 45 matching lines @@
 
 
 void BitmapBuilder::SetRange(intptr_t min, intptr_t max, bool value) {
   for (intptr_t i = min; i <= max; i++) {
     Set(i, value);
   }
 }
 
 
 void BitmapBuilder::SetBits(const Stackmap& bitmap) {
-  intptr_t min = bitmap.Minimum();
-  intptr_t max = bitmap.Maximum();
+  intptr_t min = bitmap.MinimumBitOffset();
+  intptr_t max = bitmap.MaximumBitOffset();
   if (min == Stackmap::kNoMinimum || max == Stackmap::kNoMaximum) {
     return;
   }
   for (intptr_t i = 0; i < min; i++) {
     Set(i, false);
   }
   for (intptr_t i = min; i <= max; i++) {
     Set(i, bitmap.IsObject(i));
   }
   intptr_t bound = SizeInBits();
@@ skipping 22 matching lines @@
   ASSERT(bit_list_ != NULL);
   byte_addr = &(bit_list_[byte_offset]);
   if (value) {
     *byte_addr |= mask;
   } else {
     *byte_addr &= ~mask;
   }
 }
 
 }  // namespace dart