fix(generateComponentGroup processor): ensure doc has a name

Fixes angular/angular.js#8860

Author: petebacondarwin

ngdoc/processors/generateComponentGroups.js

@@ -27,6 +27,7 @@ module.exports = function generateComponentGroupsProcessor(moduleMap) {
               moduleName: module.name,
               moduleDoc: module,
               area: module.area,
+              name: docType + ' components in '  + module.name,
               components: docs
             };
           })

ngdoc/spec/processors/generateComponentGroups.spec.js

@@ -25,6 +25,7 @@ describe("generateComponentGroupsProcessor", function() {
 
     expect(docs.length).toEqual(2);
 
+    expect(docs[0].name).toEqual('a components in mod1');
     expect(docs[0].moduleName).toEqual('mod1');
     expect(docs[0].moduleDoc).toEqual(jasmine.objectContaining({ id: 'mod1' }));
   });