Changes to support dprof and Observatory profiler UIs

runtime/vm/code_patcher.h

Index: runtime/vm/code_patcher.h
diff --git a/runtime/vm/code_patcher.h b/runtime/vm/code_patcher.h
index c0f4799dba1675cc22909939ca693e2667e97f98..4fcc1a46327e9f7bc94c7a8d797b1b5929c0b805 100644
--- a/runtime/vm/code_patcher.h
+++ b/runtime/vm/code_patcher.h
@@ -42,6 +42,9 @@ class CodePatcher : public AllStatic {
   // Restore entry point with original code (i.e., before patching).
   static void RestoreEntry(const Code& code);
 
+  // Has the entry been patched?
+  static bool IsEntryPatched(const Code& code);
+
   // Returns true if the code can be patched with a jump at beginning (checks
   // that there are no conflicts with object pointers). Used in ASSERTs.
   static bool CodeIsPatchable(const Code& code);