This was problematic if the expansion landed you back in
command position.
Delay marking the alias as out of use until the text that
caused the expansion is finished.
This makes 'type -w' distinguish suffix aliases from regular aliases,
like bare 'type' already does.
Use-case: detecting programmatically whether the command word is indeed
a valid command word (see <https://github.com/zsh-users/zsh-syntax-highlighting/issues/126>)
restrict token aliasing (34641) to global aliases; tighten up POSIX_ALIASES to better match spec; update Aliasing doc to cover this and clarify older behavior
2015-03-18 Peter Stephenson <p.stephenson@samsung.com>
* 34723: configure.ac: turn off fixed site function directory if
