[clang-tools-extra] [clang-tidy] performance-unnecessary-copy-initialization: Enhance the check for the scenario with MemberExpr initialization. (PR #151936)

[Baranov Victor via cfe-commits]

https://github.com/vbvictor commented:

Could we add tests with:
`a.member.foo()`
`a.foo().member`

https://github.com/llvm/llvm-project/pull/151936