[clang-tools-extra] [clang-tidy] make `misc-const-correctness` work with `auto` variables and lambdas (PR #157319)

[Julian Schmidt via cfe-commits]

https://github.com/5chmidti approved this pull request.

If you add the test @vbvictor suggested I think the tests are enoug. LGTM form my side, but please wait for one or two more reviewers

`const` all the things :)

https://github.com/llvm/llvm-project/pull/157319