[turbofan] Prepare mechanism to enable TF on language subset.

src/ast-numbering.cc

Index: src/ast-numbering.cc
diff --git a/src/ast-numbering.cc b/src/ast-numbering.cc
index 13d8bf8a34f9f450a90a6a7ed02ea2c5aab7ef44..68dc65a79d35a4516796029d6293fc21d8f2fc87 100644
--- a/src/ast-numbering.cc
+++ b/src/ast-numbering.cc
@@ -52,6 +52,13 @@ class AstNumberingVisitor final : public AstVisitor {
     dont_optimize_reason_ = reason;
     DisableSelfOptimization();
   }
+  void DisableCrankshaft(BailoutReason reason) {
+    if (FLAG_turbo_shipping) {
+      return properties_.flags()->Add(kDontCrankshaft);
+    }
+    dont_optimize_reason_ = reason;
+    DisableSelfOptimization();
+  }
   void DisableCaching(BailoutReason reason) {
     dont_optimize_reason_ = reason;
     DisableSelfOptimization();
@@ -148,7 +155,7 @@ void AstNumberingVisitor::VisitRegExpLiteral(RegExpLiteral* node) {
 void AstNumberingVisitor::VisitVariableProxy(VariableProxy* node) {
   IncrementNodeCount();
   if (node->var()->IsLookupSlot()) {
-    DisableOptimization(kReferenceToAVariableWhichRequiresDynamicLookup);
+    DisableCrankshaft(kReferenceToAVariableWhichRequiresDynamicLookup);
   }
   ReserveFeedbackSlots(node);
   node->set_base_id(ReserveIdRange(VariableProxy::num_ids()));
@@ -249,7 +256,7 @@ void AstNumberingVisitor::VisitCallRuntime(CallRuntime* node) {
 
 void AstNumberingVisitor::VisitWithStatement(WithStatement* node) {
   IncrementNodeCount();
-  DisableOptimization(kWithStatement);
+  DisableCrankshaft(kWithStatement);
   node->set_base_id(ReserveIdRange(WithStatement::num_ids()));
   Visit(node->expression());
   Visit(node->statement());
@@ -344,7 +351,7 @@ void AstNumberingVisitor::VisitForInStatement(ForInStatement* node) {
 
 void AstNumberingVisitor::VisitForOfStatement(ForOfStatement* node) {
   IncrementNodeCount();
-  DisableOptimization(kForOfStatement);
+  DisableCrankshaft(kForOfStatement);
   node->set_base_id(ReserveIdRange(ForOfStatement::num_ids()));
   Visit(node->assign_iterator());
   Visit(node->next_result());
@@ -511,7 +518,7 @@ bool AstNumberingVisitor::Renumber(FunctionLiteral* node) {
   }
   if (scope->calls_eval()) DisableOptimization(kFunctionCallsEval);
   if (scope->arguments() != NULL && !scope->arguments()->IsStackAllocated()) {
-    DisableOptimization(kContextAllocatedArguments);
+    DisableCrankshaft(kContextAllocatedArguments);
   }
 
   VisitDeclarations(scope->declarations());