Add some more code modification hints

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68261 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/fixit-errors.c b/test/Sema/fixit-errors.c
new file mode 100644
index 0000000..58c60ec
--- /dev/null
+++ b/test/Sema/fixit-errors.c
@@ -0,0 +1,10 @@
+// RUN: clang-cc -fsyntax-only -pedantic -verify %s 
+
+/* This is a test of the various code modification hints that are
+   provided as part of warning or extension diagnostics. Eventually,
+   we would like to actually try to perform the suggested
+   modifications and compile the result to test that no warnings
+   remain. */
+struct s; // expected-note{{previous use is here}}
+
+union s *s1; // expected-error{{use of 's' with tag type that does not match previous declaration}}