[interpreter] Partially revert handling of --debug-code.

src/interpreter/interpreter.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/interpreter.h"
 
 #include <fstream>
 #include <memory>
 
 #include "src/ast/prettyprinter.h"
@@ skipping 205 matching lines @@
 CompilationJob* Interpreter::NewCompilationJob(CompilationInfo* info) {
   return new InterpreterCompilationJob(info);
 }
 
 bool Interpreter::IsDispatchTableInitialized() {
   return dispatch_table_[0] != nullptr;
 }
 
 bool Interpreter::ShouldInitializeDispatchTable() {
   if (FLAG_trace_ignition || FLAG_trace_ignition_codegen ||
-      FLAG_trace_ignition_dispatches || FLAG_debug_code) {
+      FLAG_trace_ignition_dispatches) {
     // Regenerate table to add bytecode tracing operations, print the assembly
-    // code generated by TurboFan, instrument handlers with dispatch counters,
-    // or insert debugging code into the bytecode handlers.
+    // code generated by TurboFan or instrument handlers with dispatch counters.
     return true;
   }
   return !IsDispatchTableInitialized();
 }
 
 void Interpreter::TraceCodegen(Handle<Code> code) {
 #ifdef ENABLE_DISASSEMBLER
   if (FLAG_trace_ignition_codegen) {
     OFStream os(stdout);
     code->Disassemble(nullptr, os);
@@ skipping 2407 matching lines @@
   __ StoreObjectField(generator, JSGeneratorObject::kContinuationOffset,
       __ SmiTag(new_state));
   __ SetAccumulator(old_state);
 
   __ Dispatch();
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8