Use JavaScript grammar to highlight default values

Author: Alhadis

grammars/jsdoc.cson

@@ -256,6 +256,19 @@
         'begin': '\\['
         'end': '\\]|(?=\\*/)'
         'patterns': [
+          {
+            'match': '(=)((?:[^\\]*]|\\*[^/])*)'
+            'captures':
+              '1':
+                'name': 'keyword.operator.assignment.jsdoc'
+              '2':
+                'name': 'source.embedded.js'
+                'patterns': [
+                  {
+                    'include': 'source.js'
+                  }
+                ]
+          }
           {
             'include': '#brackets'
           }