[clang] [clang-tools-extra] [clang][CodeComplete] Omit ExplicitObject when completing code (PR #92743)

[kadir çetinkaya via cfe-commits]

kadircet wrote:

instead of testing this in clangd, can you add tests to `clang/test/CodeCompletion/`? (even better if you can extend `clang/unittests/Sema/CodeCompleteTest.cpp`). as this is a clang feature, and it'd be nice to make sure it doesn't regress at clang-level.

https://github.com/llvm/llvm-project/pull/92743