PCH support for declaration statements, and a test for PredefinedExpr

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69356 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/PCH/stmts.c b/test/PCH/stmts.c
index e9d03e8..a2278bf 100644
--- a/test/PCH/stmts.c
+++ b/test/PCH/stmts.c
@@ -7,3 +7,4 @@
 
 void g0(void) { f0(5); }
 int g1(int x) { return f1(x); }
+const char* query_name(void) { return what_is_my_name(); }