[Interpreter] Add support for cpu profiler logging.

src/isolate.h

Index: src/isolate.h
diff --git a/src/isolate.h b/src/isolate.h
index 2d74dc4a63a9b89d4542eb1ec8a8ab24662ddd4d..94c6679aea072222c899baf35d5300e36a023db5 100644
--- a/src/isolate.h
+++ b/src/isolate.h
@@ -614,6 +614,19 @@ class Isolate {
     return &thread_local_top_.js_entry_sp_;
   }
 
+  inline Address interpreter_entry_trampoline_start() {
+    return interpreter_entry_trampoline_start_;
+  }
+  inline Address interpreter_entry_trampoline_end() {
+    return interpreter_entry_trampoline_end_;
+  }
+  inline Address interpreter_bytecode_dispatch_start() {
+    return interpreter_bytecode_dispatch_start_;
+  }
+  inline Address interpreter_bytecode_dispatch_end() {
+    return interpreter_bytecode_dispatch_end_;
+  }
+
   // Returns the global object of the current context. It could be
   // a builtin object, or a JS global object.
   inline Handle<JSGlobalObject> global_object();
@@ -1315,6 +1328,13 @@ class Isolate {
   Address virtual_handler_register_;
   Address virtual_slot_register_;
 
+  // Addresses used in frames.cc to determine if a frame is an interpreter
+  // frame without looking at heap objects.
+  Address interpreter_entry_trampoline_start_;
+  Address interpreter_entry_trampoline_end_;
+  Address interpreter_bytecode_dispatch_start_;
+  Address interpreter_bytecode_dispatch_end_;
+
   int next_optimization_id_;
 
   // Counts javascript calls from the API. Wraps around on overflow.