Cleanup native, collected, and stub code handling in profiler

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.h"
 #include "vm/deopt_instructions.h"
 #include "vm/isolate.h"
 #include "vm/object.h"
@@ skipping 132 matching lines @@
   return Function::null();
 }
 
 
 RawCode* StackFrame::LookupDartCode() const {
   // We add a no gc scope to ensure that the code below does not trigger
   // a GC as we are handling raw object references here. It is possible
   // that the code is called while a GC is in progress, that is ok.
   NoGCScope no_gc;
   RawCode* code = GetCodeObject();
-  ASSERT(code == Code::null() || code->ptr()->function_ != Function::null());
+  ASSERT(code == Code::null() || code->ptr()->owner_ != Function::null());
   return code;
 }
 
 
 RawCode* StackFrame::GetCodeObject() const {
   // We add a no gc scope to ensure that the code below does not trigger
   // a GC as we are handling raw object references here. It is possible
   // that the code is called while a GC is in progress, that is ok.
   NoGCScope no_gc;
   const uword pc_marker =
@@ skipping 266 matching lines @@
     if (deopt_instr->kind() == DeoptInstr::kCallerFp) {
       return (index - num_materializations_);
     }
   }
   UNREACHABLE();
   return 0;
 }
 
 
 }  // namespace dart