Rollback of r11638, r11636 on trunk branch.

src/mips/full-codegen-mips.cc

Index: src/mips/full-codegen-mips.cc
diff --git a/src/mips/full-codegen-mips.cc b/src/mips/full-codegen-mips.cc
index 3ed794ac5920eb26af1f241c3a883b0b1156e1c9..7be50569cd99e2d18887e7481d0acb02afea5014 100644
--- a/src/mips/full-codegen-mips.cc
+++ b/src/mips/full-codegen-mips.cc
@@ -1711,8 +1711,7 @@ void FullCodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) {
   ASSERT_EQ(2, constant_elements->length());
   ElementsKind constant_elements_kind =
       static_cast<ElementsKind>(Smi::cast(constant_elements->get(0))->value());
-  bool has_fast_elements =
-      IsFastObjectElementsKind(constant_elements_kind);
+  bool has_fast_elements = constant_elements_kind == FAST_ELEMENTS;
   Handle<FixedArrayBase> constant_elements_values(
       FixedArrayBase::cast(constant_elements->get(1)));
 
@@ -1734,7 +1733,8 @@ void FullCodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) {
   } else if (length > FastCloneShallowArrayStub::kMaximumClonedLength) {
     __ CallRuntime(Runtime::kCreateArrayLiteralShallow, 3);
   } else {
-    ASSERT(IsFastSmiOrObjectElementsKind(constant_elements_kind) ||
+    ASSERT(constant_elements_kind == FAST_ELEMENTS ||
+           constant_elements_kind == FAST_SMI_ONLY_ELEMENTS ||
            FLAG_smi_only_arrays);
     FastCloneShallowArrayStub::Mode mode = has_fast_elements
       ? FastCloneShallowArrayStub::CLONE_ELEMENTS
@@ -1763,7 +1763,7 @@ void FullCodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) {
 
     VisitForAccumulatorValue(subexpr);
 
-    if (IsFastObjectElementsKind(constant_elements_kind)) {
+    if (constant_elements_kind == FAST_ELEMENTS) {
       int offset = FixedArray::kHeaderSize + (i * kPointerSize);
       __ lw(t2, MemOperand(sp));  // Copy of array literal.
       __ lw(a1, FieldMemOperand(t2, JSObject::kElementsOffset));