Use the most recent redecl to decide if it is needed.

This fixes pr14691, which I think is a regression from r168519.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171077 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 17 insertions, 0 deletions

diff --git a/test/SemaCXX/warn-func-not-needed.cpp b/test/SemaCXX/warn-func-not-needed.cpp
new file mode 100644
index 0000000000..437a428664
--- /dev/null
+++ b/test/SemaCXX/warn-func-not-needed.cpp
@@ -0,0 +1,17 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -Wall %s
+
+namespace test1 {
+  static void f() {} // expected-warning {{is not needed and will not be emitted}}
+  static void f();
+  template <typename T>
+  void foo() {
+    f();
+  }
+}
+
+namespace test2 {
+  static void f() {}
+  static void f();
+  static void g() { f(); }
+  void h() { g(); }
+}