Make the debugger completely unload when the debug event listener is unregist...

src/debug-ia32.cc

Index: src/debug-ia32.cc
===================================================================
--- src/debug-ia32.cc	(revision 1255)
+++ src/debug-ia32.cc	(working copy)
@@ -37,7 +37,7 @@
 // A debug break in the frame exit code is identified by a call instruction.
 bool BreakLocationIterator::IsDebugBreakAtReturn() {
   // Opcode E8 is call.
-  return (*(rinfo()->pc()) == 0xE8);
+  return Debug::IsDebugBreakAtReturn(rinfo());
 }
 
 
@@ -59,6 +59,14 @@
 }
 
 
+// Check whether the JS frame exit code has been patched with a debug break.
+bool Debug::IsDebugBreakAtReturn(RelocInfo* rinfo) {
+  ASSERT(RelocInfo::IsJSReturn(rinfo->rmode()));
+  // Opcode E8 is call.
+  return (*(rinfo->pc()) == 0xE8);
+}
+
+
 #define __ masm->