Remove explicit double alignment from allocation helper functions.

src/heap/heap.h

Index: src/heap/heap.h
diff --git a/src/heap/heap.h b/src/heap/heap.h
index dfbcc701e6939f5a7215d19c9118f09440fe9121..ded8a010800bea1be4a151087d590b59038f5a09 100644
--- a/src/heap/heap.h
+++ b/src/heap/heap.h
@@ -1820,7 +1820,8 @@ class Heap {
   // performed by the runtime and should not be bypassed (to extend this to
   // inlined allocations, use the Heap::DisableInlineAllocation() support).
   MUST_USE_RESULT inline AllocationResult AllocateRaw(
-      int size_in_bytes, AllocationSpace space, AllocationSpace retry_space);
+      int size_in_bytes, AllocationSpace space, AllocationSpace retry_space,
+      bool double_align = false);

[Benedikt Meurer, 2015/05/08 11:47:42]

Please don't use bool. Add an enum AlignmentConstraint {kWordAlign,kDoubleAlign}
or something like that.

[Hannes Payer (out of office), 2015/05/08 11:59:25]

Done.

 
   // Allocates a heap object based on the map.
   MUST_USE_RESULT AllocationResult