[clang-tools-extra] [clang-tidy] Fix false positives for dependent initializers (PR #186953)

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frank-suwen wrote:

Ping

I have addressed the previous review comments by simplifying the test and adding coverage for dereference, parentheses, and multi-argument initializer cases. Would appreciate any further feedback when you have time. Thanks!

https://github.com/llvm/llvm-project/pull/186953