Add asserts and state tracking to ensure that we do not call

src/arm/debug-arm.cc

 // 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 114 matching lines @@
                      Assembler::kDebugBreakSlotInstructions);
 }
 
 
 #define __ ACCESS_MASM(masm)
 
 
 static void Generate_DebugBreakCallHelper(MacroAssembler* masm,
                                           RegList object_regs,
                                           RegList non_object_regs) {
-  __ EnterInternalFrame();
+{
+  FrameScope scope(masm, StackFrame::INTERNAL);
 
   // Store the registers containing live values on the expression stack to
   // make sure that these are correctly updated during GC. Non object values
   // are stored as a smi causing it to be untouched by GC.
   ASSERT((object_regs & ~kJSCallerSaved) == 0);
   ASSERT((non_object_regs & ~kJSCallerSaved) == 0);
   ASSERT((object_regs & non_object_regs) == 0);
   if ((object_regs | non_object_regs) != 0) {
     for (int i = 0; i < kNumJSCallerSaved; i++) {
       int r = JSCallerSavedCode(i);
@@ skipping 27 matching lines @@
       if ((non_object_regs & (1 << r)) != 0) {
         __ mov(reg, Operand(reg, LSR, kSmiTagSize));
       }
       if (FLAG_debug_code &&
           (((object_regs |non_object_regs) & (1 << r)) == 0)) {
         __ mov(reg, Operand(kDebugZapValue));
       }
     }
   }
 
-  __ LeaveInternalFrame();
+  // Leave the internal frame.
+}
 
   // Now that the break point has been handled, resume normal execution by
   // jumping to the target address intended by the caller and that was
   // overwritten by the address of DebugBreakXXX.
   ExternalReference after_break_target =
       ExternalReference(Debug_Address::AfterBreakTarget(), masm->isolate());
   __ mov(ip, Operand(after_break_target));
   __ ldr(ip, MemOperand(ip));
   __ Jump(ip);
 }
@@ skipping 114 matching lines @@
 
 #undef __
 
 
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM