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

src/ia32/debug-ia32.cc

Index: src/ia32/debug-ia32.cc
===================================================================
--- src/ia32/debug-ia32.cc	(revision 8110)
+++ src/ia32/debug-ia32.cc	(working copy)
@@ -100,7 +100,8 @@
                                           RegList non_object_regs,
                                           bool convert_call_to_jmp) {
   // Enter an internal frame.
-  __ 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
@@ -133,8 +134,8 @@
   CEntryStub ceb(1);
   __ CallStub(&ceb);
 
-  // Restore the register values containing object pointers from the expression
-  // stack.
+  // Restore the register values containing object pointers from the
+  // expression stack.
   for (int i = kNumJSCallerSaved; --i >= 0;) {
     int r = JSCallerSavedCode(i);
     Register reg = { r };
@@ -151,7 +152,7 @@
   }
 
   // Get rid of the internal frame.
-  __ LeaveInternalFrame();
+}
 
   // If this call did not replace a call but patched other code then there will
   // be an unwanted return address left on the stack. Here we get rid of that.