[compiler] Prepare for partially shipping Ignition.

src/frames.cc

 // Copyright 2012 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/frames.h"
 
 #include <memory>
 #include <sstream>
 
 #include "src/base/bits.h"
@@ skipping 421 matching lines @@
     // the VM with a signal at any arbitrary instruction, with essentially
     // anything on the stack. So basically none of these checks are 100%
     // reliable.
     MSAN_MEMORY_IS_INITIALIZED(
         state->fp + StandardFrameConstants::kFunctionOffset, kPointerSize);
     Object* maybe_function =
         Memory::Object_at(state->fp + StandardFrameConstants::kFunctionOffset);
     if (!marker->IsSmi()) {
       if (maybe_function->IsSmi()) {
         return NONE;
-      } else if (FLAG_ignition && IsInterpreterFramePc(iterator->isolate(),
-                                                       *(state->pc_address))) {
+      } else if (IsInterpreterFramePc(iterator->isolate(),
+                                      *(state->pc_address))) {
         return INTERPRETED;
       } else {
         return JAVA_SCRIPT;
       }
     }
   } else {
     // Look up the code object to figure out the type of the stack frame.
     Code* code_obj =
         GetContainingCode(iterator->isolate(), *(state->pc_address));
     if (code_obj != nullptr) {
@@ skipping 1509 matching lines @@
   for (StackFrameIterator it(isolate); !it.done(); it.Advance()) {
     StackFrame* frame = AllocateFrameCopy(it.frame(), zone);
     list.Add(frame, zone);
   }
   return list.ToVector();
 }
 
 
 }  // namespace internal
 }  // namespace v8