[turbofan] JSGenericLowering mostly uses builtins instead of code stubs now

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 2ce0d5e4fb925081381ec28637c1b79ee4d14c2e..7e4fd1f953cd8fc1c4d4870b0af46674cdd60325 100644
--- a/src/full-codegen/mips/full-codegen-mips.cc
+++ b/src/full-codegen/mips/full-codegen-mips.cc
@@ -1012,8 +1012,7 @@ void FullCodeGenerator::VisitForInStatement(ForInStatement* stmt) {
   __ LoadRoot(at, Heap::kUndefinedValueRootIndex);  // In delay slot.
   __ Branch(&exit, eq, a0, Operand(at));
   __ bind(&convert);
-  ToObjectStub stub(isolate());
-  __ CallStub(&stub);
+  __ Call(isolate()->builtins()->ToObject(), RelocInfo::CODE_TARGET);
   RestoreContext();
   __ mov(a0, v0);
   __ bind(&done_convert);
@@ -1113,10 +1112,9 @@ void FullCodeGenerator::VisitForInStatement(ForInStatement* stmt) {
 
   __ mov(a0, result_register());
   // a0 contains the key. The receiver in a1 is the second argument to the
-  // ForInFilterStub. ForInFilter returns undefined if the receiver doesn't
+  // ForInFilter. ForInFilter returns undefined if the receiver doesn't
   // have the key or returns the name-converted key.
-  ForInFilterStub filter_stub(isolate());
-  __ CallStub(&filter_stub);
+  __ Call(isolate()->builtins()->ForInFilter(), RelocInfo::CODE_TARGET);
   RestoreContext();
   PrepareForBailoutForId(stmt->FilterId(), BailoutState::TOS_REGISTER);
   __ LoadRoot(at, Heap::kUndefinedValueRootIndex);
@@ -3057,8 +3055,7 @@ void FullCodeGenerator::VisitUnaryOperation(UnaryOperation* expr) {
         VisitForTypeofValue(expr->expression());
       }
       __ mov(a3, v0);
-      TypeofStub typeof_stub(isolate());
-      __ CallStub(&typeof_stub);
+      __ Call(isolate()->builtins()->Typeof(), RelocInfo::CODE_TARGET);
       context()->Plug(v0);
       break;
     }
@@ -3427,8 +3424,7 @@ void FullCodeGenerator::VisitCompareOperation(CompareOperation* expr) {
       SetExpressionPosition(expr);
       __ mov(a0, result_register());
       PopOperand(a1);
-      InstanceOfStub stub(isolate());
-      __ CallStub(&stub);
+      __ Call(isolate()->builtins()->InstanceOf(), RelocInfo::CODE_TARGET);
       PrepareForBailoutBeforeSplit(expr, false, NULL, NULL);
       __ LoadRoot(at, Heap::kTrueValueRootIndex);
       Split(eq, v0, Operand(at), if_true, if_false, fall_through);