public void setupIterator(VM_CompiledMethod compiledMethod, int instructionOffset, Address framePtr) {
public void setupIterator(VM_CompiledMethod compiledMethod, Offset instructionOffset, Address framePtr) {
  public void setupIterator(VM_CompiledMethod compiledMethod, int instructionOffset, Address framePtr) {    this.framePtr = framePtr;    // return address into generated prolog must be relocated if the code object    // for that prolog/epilog is moved by GC    jniSavedReturnAddr       = framePtr.add(VM_JNICompiler.JNI_RETURN_ADDRESS_OFFSET);  }