Improve FastCloneShallowArray/ObjectStubs with VFP copying on ARM

src/x64/full-codegen-x64.cc

Index: src/x64/full-codegen-x64.cc
===================================================================
--- src/x64/full-codegen-x64.cc	(revision 12502)
+++ src/x64/full-codegen-x64.cc	(working copy)
@@ -1568,7 +1568,8 @@
   if (expr->depth() > 1) {
     __ CallRuntime(Runtime::kCreateObjectLiteral, 4);
   } else if (flags != ObjectLiteral::kFastElements ||
-      properties_count > FastCloneShallowObjectStub::kMaximumClonedProperties) {
+             properties_count >
+                 FastCloneShallowObjectStub::MaximumClonedProperties()) {
     __ CallRuntime(Runtime::kCreateObjectLiteralShallow, 4);
   } else {
     FastCloneShallowObjectStub stub(properties_count);
@@ -1695,7 +1696,7 @@
     __ CallStub(&stub);
   } else if (expr->depth() > 1) {
     __ CallRuntime(Runtime::kCreateArrayLiteral, 3);
-  } else if (length > FastCloneShallowArrayStub::kMaximumClonedLength) {
+  } else if (length > FastCloneShallowArrayStub::MaximumClonedLength()) {
     __ CallRuntime(Runtime::kCreateArrayLiteralShallow, 3);
   } else {
     ASSERT(IsFastSmiOrObjectElementsKind(constant_elements_kind) ||