In unoptimized code use call for instanceof instead of inlined checks. This allows us to collect ty…

runtime/vm/stack_frame.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/stack_frame.h"
 
 #include "vm/assembler_macros.h"
 #include "vm/isolate.h"
 #include "vm/object.h"
 #include "vm/object_store.h"
@@ skipping 160 matching lines @@
       if (handlers.TryIndex(j) == try_index) {
         *handler_pc = handlers.HandlerPC(j);
         return true;
       }
     }
   }
   return false;
 }
 
 
+intptr_t StackFrame::GetTokenPos() const {
+  const Code& code = Code::Handle(LookupDartCode());
+  if (code.IsNull()) {
+    return -1;  // Stub frames do not have token_pos.
+  }
+  const PcDescriptors& descriptors =
+      PcDescriptors::Handle(code.pc_descriptors());
+  ASSERT(!descriptors.IsNull());
+  for (int i = 0; i < descriptors.Length(); i++) {
+    if (static_cast<uword>(descriptors.PC(i)) == pc()) {
+      return descriptors.TokenPos(i);
+    }
+  }
+  return -1;
+}
+
+
+
 bool StackFrame::IsValid() const {
   if (IsEntryFrame() || IsExitFrame() || IsStubFrame()) {
     return true;
   }
   return (LookupDartCode() != Code::null());
 }
 
 
 StackFrameIterator::StackFrameIterator(bool validate)
     : validate_(validate), entry_(), exit_(), current_frame_(NULL) {
@@ skipping 73 matching lines @@
 EntryFrame* StackFrameIterator::NextEntryFrame() {
   ASSERT(!frames_.HasNext());
   entry_.sp_ = frames_.sp_;
   entry_.fp_ = frames_.fp_;
   SetupNextExitFrameData();  // Setup data for next exit frame in chain.
   ASSERT(entry_.IsValid());
   return &entry_;
 }
 
 }  // namespace dart