[clang] [clang-format] add an option to insert a space only for non-code block empty braces, not for empty parentheses (PR #93634)

[Owen Pan via cfe-commits]

owenca wrote:

> rebased but still required to be tested and fix again

See https://github.com/llvm/llvm-project/pull/93634#discussion_r1912374181.

https://github.com/llvm/llvm-project/pull/93634