second half of PR3940: #line requires simple digit sequence.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69422 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Preprocessor/line-directive.c b/test/Preprocessor/line-directive.c
index 8877406..98f92f1 100644
--- a/test/Preprocessor/line-directive.c
+++ b/test/Preprocessor/line-directive.c
@@ -70,3 +70,6 @@
 
 // PR3940
 #line 0xf  // expected-warning {{#line directive requires decimal line number}}
+#line 42U  // expected-warning {{#line directive requires a simple digit sequence}}
+
+