Add more highlight groups for othree/yajs.vim

colors/onedark.vim

@@ -241,7 +241,10 @@ call s:h("javascriptArrowFunc", { "fg": s:purple })
 call s:h("javascriptEndColons", { "fg": s:white })
 call s:h("javascriptFuncArg", { "fg": s:white })
 call s:h("javascriptFuncKeyword", { "fg": s:purple })
+call s:h("javascriptIdentifier", { "fg": s:red })
 call s:h("javascriptObjectLabel", { "fg": s:white })
+call s:h("javascriptOpSymbol", { "fg": s:cyan })
+call s:h("javascriptOpSymbols", { "fg": s:cyan })
 call s:h("javascriptPropertyName", { "fg": s:green })
 call s:h("javascriptTemplateSB", { "fg": s:dark_red })
 call s:h("javascriptVariable", { "fg": s:purple })