Make VerifyIntegerConstantExpr print extension warnings for non-ICEs.

Overall, I'm not particularly happy with the current situation regarding 
constant expression diagnostics, but I plan to improve it at some point.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70089 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/PR2963-enum-constant.c b/test/Sema/PR2963-enum-constant.c
index 7a08814..78f2326 100644
--- a/test/Sema/PR2963-enum-constant.c
+++ b/test/Sema/PR2963-enum-constant.c
@@ -13,5 +13,5 @@
 
 enum
 {
-        SOME_VALUE= FLOAT_TO_SHORT_FIXED(0.1)
+        SOME_VALUE= FLOAT_TO_SHORT_FIXED(0.1) // expected-warning{{expression is not integer constant expression}}
 };