* lisp/progmodes/compile.el: Don't use font-lock any more.

* lisp/progmodes/compile.el: Don't use font-lock any more.
(compilation-error-regexp-alist-alist): Change handling of makepp
so it preserves the warning/error distinction on subsequent files.
Simplify various rules.
(compilation-directory-properties): Use font-lock-face.
Add a compilation-message property.
(compilation-internal-error-properties): Use font-lock-face.
Don't set the compilation-debug property here.
(compilation--put-prop, compilation--remove-properties)
(compilation--parse-region, compilation--ensure-parse)
(compilation--ensure-parse): New functions.
(compilation-parse-errors): New function, largely inspired of
compilation-mode-font-lock-keywords.  Set compilation-debug here.
(compilation--parsed): New var.
(compilation--flush-parse): Use compilation--ensure-parse.
(compilation-start): Don't call font-lock.
(compilation-turn-on-font-lock): Remove.
(compilation-setup): Don't set font-lock-extra-managed-props not change
other font-lock settings, other than keywords.
Don't activate font-lock-mode.
Set change-major-mode-hook and before-change-functions.
(compilation--unsetup): Remove properties and hooks.
(compilation-next-single-property-change): New function.
(compilation-next-error): Use it to parse when needed.
(compile-goto-error): Parse buffer as needed.
(compilation--compat-error-properties): Don't need a dummy `face'
property any more.