Split even more runtime functions into separate files.

src/debug.h

Index: src/debug.h
diff --git a/src/debug.h b/src/debug.h
index a5119d0773946ef4c6302375ab51fba6675de510..7e792b69cf7aed9845f0d25a1feeec37facb6f5a 100644
--- a/src/debug.h
+++ b/src/debug.h
@@ -454,6 +454,10 @@ class Debug {
   // Record function from which eval was called.
   static void RecordEvalCaller(Handle<Script> script);
 
+  bool CheckExecutionState(int id) {
+    return !debug_context().is_null() && break_id() != 0 && break_id() == id;
+  }
+
   // Flags and states.
   DebugScope* debugger_entry() { return thread_local_.current_debug_scope_; }
   inline Handle<Context> debug_context() { return debug_context_; }