Fix PR2279 part C: shifts don't perform the UACs, thanks to Neil 
for pointing this out.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50624 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Preprocessor/expr_usual_conversions.c b/test/Preprocessor/expr_usual_conversions.c
index b2ccc40..90275c9 100644
--- a/test/Preprocessor/expr_usual_conversions.c
+++ b/test/Preprocessor/expr_usual_conversions.c
@@ -6,3 +6,8 @@
 foo
 #endif
 
+// Shifts don't want the usual conversions: PR2279
+#if (2 << 1U) - 30 >= 0
+#error
+#endif
+