Rollup merge of #138988 - madsmtm:internal-weak-macro-syntax, r=ibraheemdev

Change the syntax of the internal `weak!` macro

Change the syntax to include parameter names and a trailing semicolon.

Motivation:
- Mirror the `syscall!` macro.
- Allow rustfmt to format it (when wrapped in parentheses, and when not inside `cfg_if!`).
- For better documentation (having the parameter names available in the source code is a bit nicer).
- Allow a future improvement to this macro where we can sometimes use the symbol directly when it's statically known to be available (and thus need the parameter names to be available), see https://github.com/rust-lang/rust/pull/136868.

r? libs

0 files changed, 0 insertions, 0 deletions