* progmodes/compile.el (compilation-directory-stack): Doc fix.

* progmodes/compile.el (compilation-directory-stack): Doc fix.
(compilation-mode): Accept optional parameter and initialize
mode-name from it.
(compile-internal): Pass name-of-mode to compilation-mode.  Don't
set mode-name here.
(compilation-minor-mode): Don't let mode-line-process change.
(compilation-next-error-locus): Use forward-char instead of
move-to-column.
(compilation-parse-errors): Set default-directory from head of
compilation-directory-stack.