chore($compile): make webstorm's regexp parser happy

Minor change puts \- at end of character pattern

In CLASS_DIRECTIVE_REGEXP and COMMENT_DIRECTIVE_REGEXP, putting the \- character at
the end of the character patter speeds up many IDE parsers and alleviates some
errors in certain IDE's. (WebStorm 8)

Functionally absolutely equivalent. No test change needed.

Closes angular#7093

Conflicts:
	src/ng/compile.js

Author: malixsys

src/ng/compile.js

@@ -525,8 +525,8 @@ $CompileProvider.$inject = ['$provide', '$$sanitizeUriProvider'];
 function $CompileProvider($provide, $$sanitizeUriProvider) {
   var hasDirectives = {},
       Suffix = 'Directive',
-      COMMENT_DIRECTIVE_REGEXP = /^\s*directive\:\s*([\d\w\-_]+)\s+(.*)$/,
-      CLASS_DIRECTIVE_REGEXP = /(([\d\w\-_]+)(?:\:([^;]+))?;?)/,
+      COMMENT_DIRECTIVE_REGEXP = /^\s*directive\:\s*([\d\w_\-]+)\s+(.*)$/,
+      CLASS_DIRECTIVE_REGEXP = /(([\d\w_\-]+)(?:\:([^;]+))?;?)/,
       ALL_OR_NOTHING_ATTRS = makeMap('ngSrc,ngSrcset,src,srcset');
 
   // Ref: http://developers.whatwg.org/webappapis.html#event-handler-idl-attributes