[Clang-tidy]: Fix modernize-avoid-bind erroneous scope resolution.

Hello, i would like to suggest a fix for one of the checks in clang-tidy and i should hope this one is the correct mailing list.
The check is modernize-avoid-bind.

Consider the following:

  void bar(int x, int y);

  namespace N {
    void bar(int x, int y);
  }

  void foo(){
    auto Test = std::bind(N::bar,1,1);
  }

clang-tidy’s modernize-avoid-bind check suggests writing:

  void foo(){
    auto Test =[] {return bar(1,1);};
  }

instead of:

  void foo(){
    auto Test = [] {return N::bar(1,1);};
  }

So clang-tidy has proposed an incorrect Fix.

Patch by IdrissRio!

Reviewers: alexfh, hokein, aaron.ballman

Subscriber: cfe-commits
llvm-svn: 284719