Mojom frontend: Allow non-reference types in non-zero versions of a struct.

mojom/mojom_parser/parser/computed_data_test.go

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package parser
 
 import (
         "mojom/mojom_parser/mojom"
         "strings"
         "testing"
@@ skipping 138 matching lines @@
           int32 y;
 
           [MinVersion = 1]
           array<int32> z;
 
       [MinVersion = 2]
           array<int32>? w;
         };`
                 test.addTestCase(contents, []string{
                         "Invalid type for field z: array<int32>.",
-                        "Non-nullable fields are only allowed in version 0 of of a struct.",
+                        "Non-nullable reference fields are only allowed in version 0 of of a struct.",
                         "This field's MinVersion is 1."})
         }
 
         ////////////////////////////////////////////////////////////
         // Execute all of the test cases.
         ////////////////////////////////////////////////////////////
         for i, c := range test.cases {
                 // Parse anresolve the mojom input.
                 descriptor := mojom.NewMojomDescriptor()
                 specifiedName := ""
@@ skipping 21 matching lines @@
 
                 got := err.Error()
                 for _, expected := range c.expectedErrors {
                         if !strings.Contains(got, expected) {
                                 t.Errorf("%s:\n*****expected to contain:\n%s\n****actual\n%s", c.fileName, expected, got)
                         }
                 }
 
         }
 }