MIPS: Move state sentinels into TypeFeedbackVector.

Port r24037 (d821bf9)

Original commit message:
These sentinels were in the wrong place, living in only tangentially related class TypeFeedbackInfo, but they codify state in the TypeFeedbackVector.

BUG=
R=dusan.milosavljevic@imgtec.com

Review URL: https://codereview.chromium.org/583573003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24046 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/mips64/code-stubs-mips64.cc

@@ -2480,9 +2480,9 @@ static void GenerateRecordCallTarget(MacroAssembler* masm) {
   // a3 : slot in feedback vector (Smi)
   Label initialize, done, miss, megamorphic, not_array_function;
 
-  DCHECK_EQ(*TypeFeedbackInfo::MegamorphicSentinel(masm->isolate()),
+  DCHECK_EQ(*TypeFeedbackVector::MegamorphicSentinel(masm->isolate()),
             masm->isolate()->heap()->megamorphic_symbol());
-  DCHECK_EQ(*TypeFeedbackInfo::UninitializedSentinel(masm->isolate()),
+  DCHECK_EQ(*TypeFeedbackVector::UninitializedSentinel(masm->isolate()),
             masm->isolate()->heap()->uninitialized_symbol());
 
   // Load the cache state into a4.

src/mips64/full-codegen-mips64.cc

@@ -1175,7 +1175,7 @@ void FullCodeGenerator::VisitForInStatement(ForInStatement* stmt) {
   __ bind(&fixed_array);
 
   __ li(a1, FeedbackVector());
-  __ li(a2, Operand(TypeFeedbackInfo::MegamorphicSentinel(isolate())));
+  __ li(a2, Operand(TypeFeedbackVector::MegamorphicSentinel(isolate())));
   __ sd(a2, FieldMemOperand(a1, FixedArray::OffsetOfElementAt(slot)));
 
   __ li(a1, Operand(Smi::FromInt(1)));  // Smi indicates slow check