[clang-tools-extra] [clang-tidy][NFC] Refactor `modernize-pass-by-value` check code and tests (PR #140753)

[Baranov Victor via cfe-commits]

vbvictor wrote:

> Also, CHECK-MESSAGES-NOT is discouraged, since the testing framework already checks that no other output is produced by default.

So if CHECK-FIXES are the same as previous code, we can remove them completely (I changed them to CHECK-MESSAGES-NOT)



https://github.com/llvm/llvm-project/pull/140753