Move (uppercase) JS builtins from js builtins object to native context.

src/full-codegen/mips/full-codegen-mips.cc

Index: src/full-codegen/mips/full-codegen-mips.cc
diff --git a/src/full-codegen/mips/full-codegen-mips.cc b/src/full-codegen/mips/full-codegen-mips.cc
index c1d2ae01f15af7e984770eb79e170e90e6ef7ae6..2fc185ce63cc5ae6050b9eff43fd8fb6abcd32a3 100644
--- a/src/full-codegen/mips/full-codegen-mips.cc
+++ b/src/full-codegen/mips/full-codegen-mips.cc
@@ -163,7 +163,7 @@ void FullCodeGenerator::Generate() {
         __ Subu(t5, sp, Operand(locals_count * kPointerSize));
         __ LoadRoot(a2, Heap::kRealStackLimitRootIndex);
         __ Branch(&ok, hs, t5, Operand(a2));
-        __ InvokeBuiltin(Builtins::STACK_OVERFLOW, CALL_FUNCTION);
+        __ InvokeBuiltin(Context::STACK_OVERFLOW_BUILTIN_INDEX, CALL_FUNCTION);
         __ bind(&ok);
       }
       __ LoadRoot(t5, Heap::kUndefinedValueRootIndex);
@@ -1907,7 +1907,8 @@ void FullCodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) {
     __ Push(v0);
     if (subexpr->IsSpread()) {
       VisitForStackValue(subexpr->AsSpread()->expression());
-      __ InvokeBuiltin(Builtins::CONCAT_ITERABLE_TO_ARRAY, CALL_FUNCTION);
+      __ InvokeBuiltin(Context::CONCAT_ITERABLE_TO_ARRAY_BUILTIN_INDEX,
+                       CALL_FUNCTION);
     } else {
       VisitForStackValue(subexpr);
       __ CallRuntime(Runtime::kAppendElement, 2);
@@ -5076,7 +5077,7 @@ void FullCodeGenerator::VisitCompareOperation(CompareOperation* expr) {
   switch (op) {
     case Token::IN:
       VisitForStackValue(expr->right());
-      __ InvokeBuiltin(Builtins::IN, CALL_FUNCTION);
+      __ InvokeBuiltin(Context::IN_BUILTIN_INDEX, CALL_FUNCTION);
       PrepareForBailoutBeforeSplit(expr, false, NULL, NULL);
       __ LoadRoot(t0, Heap::kTrueValueRootIndex);
       Split(eq, v0, Operand(t0), if_true, if_false, fall_through);