✅ Add spec for alternative optional JSDoc type syntax

Author: bgriffith

spec/javascript-spec.coffee

@@ -1554,6 +1554,11 @@ 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 {number=} variable this is the description */')
+      expect(tokens[4]).toEqual value: '{number=}', scopes: ['source.js', 'comment.block.documentation.js', 'other.meta.jsdoc', 'entity.name.type.instance.jsdoc']
+      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']
+
     it "tokenizes // comments", ->
       {tokens} = grammar.tokenizeLine('// comment')
       expect(tokens[0]).toEqual value: '//', scopes: ['source.js', 'comment.line.double-slash.js', 'punctuation.definition.comment.js']