1 files changed, 21 insertions, 0 deletions
diff --git a/test/Parser/cxx-decl.cpp b/test/Parser/cxx-decl.cpp
index 3fa284282a..8c5ab6a55d 100644
--- a/test/Parser/cxx-decl.cpp
+++ b/test/Parser/cxx-decl.cpp
@@ -1,3 +1,24 @@
 // RUN: clang-cc -verify -fsyntax-only %s
 
 int x(*g); // expected-error {{use of undeclared identifier 'g'}}
+
+
+// PR4451 - We should recover well from the typo of '::' as ':' in a2.
+namespace y {
+  struct a { };  
+}
+
+y::a a1;
+y:a a2;  // expected-error {{unexpected ':' in nested name specifier}}
+y::a a3 = a2;
+
+// Some valid colons:
+void foo() {
+y:  // label
+  y::a s;
+  
+  int a = 4;
+  a = a ? a : a+1;
+}
+
+struct b : y::a {};
+\ No newline at end of file