✅ Add spec for JSDoc optional parameter default values

Author: bgriffith

spec/javascript-spec.coffee

@@ -1514,7 +1514,10 @@ describe "Javascript grammar", ->
       expect(tokens[6]).toEqual value: '[variable]', scopes: ['source.js', 'comment.block.documentation.js', 'other.meta.jsdoc', 'variable.other.jsdoc']
       expect(tokens[8]).toEqual value: 'this is the description ', scopes: ['source.js', 'comment.block.documentation.js', 'other.meta.jsdoc', 'other.description.jsdoc']
 
-
+      {tokens} = grammar.tokenizeLine('/** @param {object} [variable=default value] this is the description */')
+      expect(tokens[4]).toEqual value: '{object}', scopes: ['source.js', 'comment.block.documentation.js', 'other.meta.jsdoc', 'entity.name.type.instance.jsdoc']
+      expect(tokens[6]).toEqual value: '[variable=default value]', scopes: ['source.js', 'comment.block.documentation.js', 'other.meta.jsdoc', 'variable.other.jsdoc']
+      expect(tokens[8]).toEqual value: 'this is the description ', scopes: ['source.js', 'comment.block.documentation.js', 'other.meta.jsdoc', 'other.description.jsdoc']
 
     it "tokenizes // comments", ->
       {tokens} = grammar.tokenizeLine('// comment')