Modified syntax groups regular expressions

Instead of targetting the regular expressions to very specific syntax
groups (ie: javaScriptDocComment), which make the indent script not
compatible with other syntaxes (ie: jsComment), more generic versions
are used which should still match the same groups by using case
insensitive search and shorter patterns (string, regex and comment).

indent/javascript.vim

@@ -33,13 +33,13 @@ set cpo&vim
 " ============
 
 " Regex of syntax group names that are or delimit string or are comments.
-let s:syng_strcom = 'javaScript\%(String\|RegexpString\|CommentTodo\|LineComment\|Comment\|DocComment\)'
+let s:syng_strcom = 'string\|regex\|comment\c'
 
 " Regex of syntax group names that are strings.
-let s:syng_string = 'javaScript\%(RegexpString\)'
+let s:syng_string = 'regex\c'
 
 " Regex of syntax group names that are strings or documentation.
-let s:syng_stringdoc = 'javaScriptDocComment\|javaScriptComment'
+let s:syng_stringdoc = 'comment\c'
 
 " Expression used to check whether we should skip a match with searchpair().
 let s:skip_expr = "synIDattr(synID(line('.'),col('.'),1),'name') =~ '".s:syng_strcom."'"