Update the generator to work around a MSVC limitation.

mojo/public/interfaces/bindings/tests/test_structs.mojom

 // Copyright 2013 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.
 
 [JavaPackage="org.chromium.mojo.bindings.test.mojom.test_structs"]
 module mojo.test;
 
 import "mojo/public/interfaces/bindings/tests/rect.mojom";
 
 struct NamedRegion {
@@ skipping 165 matching lines @@
   const int8 V2 = 0;    // 0
   const int8 V3 = 42;   // An arbitrary valid value.
   const int8 V4 = 127;  // Maximum
 
   const int16 V5 = -32768; // ...
   const int16 V6 = -1;
   const int16 V7 = 0;
   const int16 V8 = 12345;
   const int16 V9 = 32767;
 
-  // MSVC can't parse -2147483648 so V10 is intentionally off by one.
-  // See http://msdn.microsoft.com/en-us/library/4kh09110.aspx
-  // Tests may override V10.
-  const int32 V10 = -2147483647;
+  const int32 V10 = -2147483648;
   const int32 V11 = -1;
   const int32 V12 = 0;
   const int32 V13 = 1234567890;
   const int32 V14 = 2147483647;
 
   // The limits for JavaScript integers are +/- (2^53 - 1). 
   const int64 V15 = -9007199254740991; // Number.MIN_SAFE_INTEGER
   const int64 V16 = -1;
   const int64 V17 = 0;
   const int64 V18 = 1234567890123456;
@@ skipping 67 matching lines @@
 
 struct BitArrayValues {
   array<bool, 1> f0;
   array<bool, 7> f1;
   array<bool, 9> f2;
   array<bool> f3;
   array<array<bool>> f4;
   array<array<bool>?> f5;
   array<array<bool, 2>?> f6;
 };