PCH support for a few very, very simple kinds of expressions. Hook up
expression (de-)serialization for VLAs, variable initializers,
enum constant initializers, and bitfield widths.

llvm-svn: 69075
diff --git a/clang/test/PCH/struct.h b/clang/test/PCH/struct.h
index 6c25622..2ffdd4a 100644
--- a/clang/test/PCH/struct.h
+++ b/clang/test/PCH/struct.h
@@ -13,7 +13,7 @@
 struct Fun *fun;
 
 struct Fun {
-  int is_ptr;
+  int is_ptr : 1;
 
   union {
     void *ptr;