[javascript mode] Fix variable name
[javascript mode] Fix variable name

wingify/CodeMirror,pabloferz/CodeMirror,wingify/CodeMirror,hackmdio/CodeMirror,dperetti/CodeMirror,pabloferz/CodeMirror,dperetti/CodeMirror,wingify/CodeMirror,hackmdio/CodeMirror,nightwing/CodeMirror,pabloferz/CodeMirror,hackmdio/CodeMirror,nightwing/CodeMirror,dperetti/CodeMirror,nightwing/CodeMirror