Add the test case from PR 14044 to ensure it doesn't regress.

The test started working at some point, presumably fixed through the
delayed typo correction work.

llvm-svn: 236883

clang/test/PCH/chain-typo-corrections.cpp

@@ -0,0 +1,12 @@
+// RUN: %clang_cc1 -verify -chain-include %s %s
+
+// PR 14044
+#ifndef PASS1
+#define PASS1
+class S {
+  void f(struct Test);
+};
+#else
+::Tesy *p;  // expected-error {{did you mean 'Test'}}
+            // expected-note@-4 {{'Test' declared here}}
+#endif