Add asserts to ensure that we:

src/frames.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 121 matching lines @@
   V(ARGUMENTS_ADAPTOR, ArgumentsAdaptorFrame)
 
 
 // Abstract base class for all stack frames.
 class StackFrame BASE_EMBEDDED {
  public:
 #define DECLARE_TYPE(type, ignore) type,
   enum Type {
     NONE = 0,
     STACK_FRAME_TYPE_LIST(DECLARE_TYPE)
-    NUMBER_OF_TYPES
+    NUMBER_OF_TYPES,
+    // Used by FrameScope to indicate that the stack frame is constructed
+    // manually and the FrameScope does not need to emit code.
+    MANUAL
   };
 #undef DECLARE_TYPE
 
   // Opaque data type for identifying stack frames. Used extensively
   // by the debugger.
   // ID_MIN_VALUE and ID_MAX_VALUE are specified to ensure that enumeration type
   // has correct value range (see Issue 830 for more details).
   enum Id {
     ID_MIN_VALUE = kMinInt,
     ID_MAX_VALUE = kMaxInt,
@@ skipping 716 matching lines @@
 };
 
 
 // Reads all frames on the current stack and copies them into the current
 // zone memory.
 Vector<StackFrame*> CreateStackMap();
 
 } }  // namespace v8::internal
 
 #endif  // V8_FRAMES_H_