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

src/compiler/bytecode-graph-builder.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/bytecode-graph-builder.h"
 
 #include "src/compiler/bytecode-branch-analysis.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/operator-properties.h"
 #include "src/interpreter/bytecodes.h"
@@ skipping 909 matching lines @@
       CreateVectorSlotPair(bytecode_iterator().GetIndexOperand(3));
 
   const Operator* call = javascript()->CallFunction(
       arg_count + 1, feedback, receiver_hint, tail_call_mode);
   Node* value = ProcessCallArguments(call, callee, receiver, arg_count + 1);
   environment()->BindAccumulator(value, &states);
 }
 
 void BytecodeGraphBuilder::VisitCall() { BuildCall(TailCallMode::kDisallow); }
 
-void BytecodeGraphBuilder::VisitTailCall() { BuildCall(TailCallMode::kAllow); }
+void BytecodeGraphBuilder::VisitTailCall() {
+  TailCallMode tail_call_mode =
+      bytecode_array_->GetIsolate()->is_tail_call_elimination_enabled()
+          ? TailCallMode::kAllow
+          : TailCallMode::kDisallow;
+  BuildCall(tail_call_mode);
+}
 
 void BytecodeGraphBuilder::VisitCallJSRuntime() {
   FrameStateBeforeAndAfter states(this);
   Node* callee =
       BuildLoadNativeContextField(bytecode_iterator().GetIndexOperand(0));
   interpreter::Register receiver = bytecode_iterator().GetRegisterOperand(1);
   size_t arg_count = bytecode_iterator().GetRegisterCountOperand(2);
 
   // Create node to perform the JS runtime call.
   const Operator* call = javascript()->CallFunction(arg_count + 1);
@@ skipping 695 matching lines @@
     // Phi does not exist yet, introduce one.
     value = NewPhi(inputs, value, control);
     value->ReplaceInput(inputs - 1, other);
   }
   return value;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8