Provide safer and more convenient constant union accessors.

TRAC #22676
Signed-off-by: Geoff Lang
Signed-off-by: Shannon Woods
Author: Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/branches/es3proto@2071 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/compiler/ConstantUnion.h b/src/compiler/ConstantUnion.h
index fd9d94d..32af4d3 100644
--- a/src/compiler/ConstantUnion.h
+++ b/src/compiler/ConstantUnion.h
@@ -1,5 +1,5 @@
 //
-// Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
+// Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
@@ -14,6 +14,7 @@
     ConstantUnion()
     {
         iConst = 0;
+        type = EbtVoid;
     }
 
     POOL_ALLOCATOR_NEW_DELETE(GlobalPoolAllocator)