Include `signal.h` to define SIGTRAP in Stage 1 compiler (#14867)

copy lib/zig.h to stage1/zig.h

In this case, it looks safe to backport over with no changes.

Co-authored-by: Andrew Kelley <andrew@ziglang.org>
5a26d1b426Lavt Niveau committed on 3/10/2023, 1:36:43 PM· committed by GitHubparent023753b
1 file changedLine totals unavailable