[csmith-project/creduce] 5f8184: fixed an issue for rewriting dtor

[Yang Chen <noreply@github.com>]

  Branch: refs/heads/master
  Home:   https://github.com/csmith-project/creduce
  Commit: 5f81842828d6ba459d184c6623fbdfd99d9a79a0
      https://github.com/csmith-project/creduce/commit/5f81842828d6ba459d184c6623fbdfd99d9a79a0
  Author: Yang Chen <chenyang@cs.utah.edu>
  Date:   2019-10-08 (Tue, 08 Oct 2019)

  Changed paths:
    M clang_delta/CommonRenameClassRewriteVisitor.h
    M clang_delta/RewriteUtils.h
    A clang_delta/tests/rename-class/class_template2.cc
    A clang_delta/tests/rename-class/dtor.cc
    A clang_delta/tests/rename-class/dtor1.cc
    A clang_delta/tests/rename-class/elaborated_type1.cpp
    A clang_delta/tests/rename-class/elaborated_type2.cpp

  Log Message:
  -----------
  fixed an issue for rewriting dtor

also added a couple of new tests