Clean-up aligned allocation logic.

src/heap/spaces.cc

Index: src/heap/spaces.cc
diff --git a/src/heap/spaces.cc b/src/heap/spaces.cc
index 218077c2f46aa46297bd8fc6107cc0192daf8a52..fea141601108241c25d607235a4ce5395e15693d 100644
--- a/src/heap/spaces.cc
+++ b/src/heap/spaces.cc
@@ -1478,7 +1478,7 @@ AllocationResult NewSpace::SlowAllocateRaw(int size_in_bytes,
       return AllocateRawAligned(size_in_bytes, kDoubleAligned);
     else if (alignment == kDoubleUnaligned)
       return AllocateRawAligned(size_in_bytes, kDoubleUnaligned);
-    return AllocateRaw(size_in_bytes);
+    return AllocateRawUnaligned(size_in_bytes);
   } else if (AddFreshPage()) {
     // Switched to new page. Try allocating again.
     int bytes_allocated = static_cast<int>(old_top - top_on_previous_step_);
@@ -1489,7 +1489,7 @@ AllocationResult NewSpace::SlowAllocateRaw(int size_in_bytes,
       return AllocateRawAligned(size_in_bytes, kDoubleAligned);
     else if (alignment == kDoubleUnaligned)
       return AllocateRawAligned(size_in_bytes, kDoubleUnaligned);
-    return AllocateRaw(size_in_bytes);
+    return AllocateRawUnaligned(size_in_bytes);
   } else {
     return AllocationResult::Retry();
   }