1210689 - Enforce that EXTRA_JS_*_MODULES be only JS files

Status: NEW

(Firefox Build System :: General, defect)

Description

[Joshua Cranmer [:jcranmer]]

Found while attempting to build a script to extract all JS files for a given build:

(see <https://dxr.mozilla.org/comm-central/source/mozilla/devtools/shared/gcli/moz.build?offset=0#81>)
EXTRA_JS_MODULES.devtools.gcli.ui += [
    'source/lib/gcli/ui/focus.js',
    'source/lib/gcli/ui/history.js',
    'source/lib/gcli/ui/intro.js',
    'source/lib/gcli/ui/menu.css',
    'source/lib/gcli/ui/menu.html',
    'source/lib/gcli/ui/menu.js',
    'source/lib/gcli/ui/view.js',
]

This kind of nonsense should not be tolerated.