Pass the GlobalDecl to getMangledName, fixes PR4890.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81486 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGenCXX/PR4890-debug-info-dtor.cpp b/test/CodeGenCXX/PR4890-debug-info-dtor.cpp
new file mode 100644
index 0000000..a0d3a8d
--- /dev/null
+++ b/test/CodeGenCXX/PR4890-debug-info-dtor.cpp
@@ -0,0 +1,6 @@
+// RUN: clang-cc -emit-llvm-only -g %s
+struct X {
+  ~X();
+};
+
+X::~X() { }