[api] Add a switch that controls if ES2015 tail call elimination feature is enabled or not.

src/isolate.h

Index: src/isolate.h
diff --git a/src/isolate.h b/src/isolate.h
index 1ebaa28a76022352a799019e89d1cf2eed0498d1..a91ec93187def11a2f18a31f86e9f0ef893e3e4d 100644
--- a/src/isolate.h
+++ b/src/isolate.h
@@ -1096,9 +1096,7 @@ class Isolate {
   bool is_tail_call_elimination_enabled() const {
     return is_tail_call_elimination_enabled_;
   }
-  void set_tail_call_elimination_enabled(bool enabled) {
-    is_tail_call_elimination_enabled_ = enabled;
-  }
+  void SetTailCallEliminationEnabled(bool enabled);
 
   void AddDetachedContext(Handle<Context> context);
   void CheckDetachedContextsAfterGC();