[interpreter] Deprecate the --ignition-fake-try-catch flag.

src/interpreter/bytecode-generator.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/interpreter/bytecode-generator.h"
 
 #include "src/ast/scopes.h"
 #include "src/compiler.h"
 #include "src/interpreter/bytecode-register-allocator.h"
 #include "src/interpreter/control-flow-builders.h"
@@ skipping 882 matching lines @@
 }
 
 
 void BytecodeGenerator::VisitForOfStatement(ForOfStatement* stmt) {
   UNIMPLEMENTED();
 }
 
 
 void BytecodeGenerator::VisitTryCatchStatement(TryCatchStatement* stmt) {
   TryCatchBuilder try_control_builder(builder());
-  if (!FLAG_ignition_fake_try_catch) UNIMPLEMENTED();
 
   // Preserve the context in a dedicated register, so that it can be restored
   // when the handler is entered by the stack-unwinding machinery.
   // TODO(mstarzinger): Be smarter about register allocation.
   Register context = register_allocator()->NewRegister();
 
   // Evaluate the try-block inside a control scope. This simulates a handler
   // that is intercepting 'throw' control commands.
   try_control_builder.BeginTry(context);
   // TODO(mstarzinger): Control scope is missing!
@@ skipping 17 matching lines @@
       Runtime::kPushCatchContext, name, 3);
 
   // Evaluate the catch-block.
   Visit(stmt->catch_block());
   try_control_builder.EndCatch();
 }
 
 
 void BytecodeGenerator::VisitTryFinallyStatement(TryFinallyStatement* stmt) {
   TryFinallyBuilder try_control_builder(builder());
-  if (!FLAG_ignition_fake_try_catch) UNIMPLEMENTED();
 
   // Preserve the context in a dedicated register, so that it can be restored
   // when the handler is entered by the stack-unwinding machinery.
   // TODO(mstarzinger): Be smarter about register allocation.
   Register context = register_allocator()->NewRegister();
 
   // Evaluate the try-block inside a control scope. This simulates a handler
   // that is intercepting all control commands.
   try_control_builder.BeginTry(context);
   // TODO(mstarzinger): Control scope is missing!
@@ skipping 1305 matching lines @@
 }
 
 
 int BytecodeGenerator::feedback_index(FeedbackVectorSlot slot) const {
   return info()->feedback_vector()->GetIndex(slot);
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8