@Override
    public void visitGoToInstruction(final GoToInstruction instruction, final int offset, final int nextOffset) {
      super.visitGoToInstruction(instruction, offset, nextOffset);

      if (instruction.isReturn) {
        final PsiElement element = myFlow.getElement(offset);
        if (element instanceof PsiReturnStatement) {
          final PsiReturnStatement returnStatement = (PsiReturnStatement)element;
          myAffectedReturns.add(returnStatement);
        }
      }
    }
@Override
    public void visitGoToInstruction(final GoToInstruction instruction, final int offset, final int nextOffset)