Merge bleeding edge up to 8774 into the GC branch.

src/heap-inl.h

Index: src/heap-inl.h
===================================================================
--- src/heap-inl.h	(revision 8778)
+++ src/heap-inl.h	(working copy)
@@ -153,6 +153,11 @@
 }
 
 
+MaybeObject* Heap::CopyFixedDoubleArray(FixedDoubleArray* src) {
+  return CopyFixedDoubleArrayWithMap(src, src->map());
+}
+
+
 MaybeObject* Heap::AllocateRaw(int size_in_bytes,
                                AllocationSpace space,
                                AllocationSpace retry_space) {
@@ -368,11 +373,7 @@
 
   int size_in_words = byte_size / kPointerSize;
 
-  if ((dst < src) || (dst >= (src + size_in_words))) {
-    ASSERT((dst >= (src + size_in_words)) ||
-           ((OffsetFrom(reinterpret_cast<Address>(src)) -
-             OffsetFrom(reinterpret_cast<Address>(dst))) >= kPointerSize));
-
+  if ((dst < src) || (dst >= (src + byte_size))) {
     Object** src_slot = reinterpret_cast<Object**>(src);
     Object** dst_slot = reinterpret_cast<Object**>(dst);
     Object** end_slot = src_slot + size_in_words;