patch 8.2.4728: no test that v:event cannot be modified Commit: https://github.com/vim/vim/commit/021996ffaa933d9dc0c3553ca01de93fbf3d522b Author: zeertzjq <zeertzjq@outlook.com> Date: Sun Apr 10 11:44:04 2022 +0100 patch 8.2.4728: no test that v:event cannot be modified Problem: No test that v:event cannot be modified. Solution: Add a test. (closes https://github.com/vim/vim/issues/10139)

# Clang 12 (or Apple clang 13) and later makes a warning '-Wcompound-token-split-by-macro' enable by default.
/^PERL_CFLAGS_EXTRA[[:blank:]]*=/s/$/ -Wno-error=compound-token-split-by-macro/
/^RUBY_CFLAGS_EXTRA[[:blank:]]*=/s/$/ -Wno-error=compound-token-split-by-macro/