Reject overloading of two static extern C functions.

This patch moves hasCLanguageLinkage to be VarDecl and FunctionDecl methods
so that they can be used from SemaOverload.cpp and then fixes the logic
in Sema::IsOverload.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171193 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 7 insertions, 0 deletions

diff --git a/test/SemaCXX/linkage2.cpp b/test/SemaCXX/linkage2.cpp
index ccf32008f1..f6561b9f12 100644
--- a/test/SemaCXX/linkage2.cpp
+++ b/test/SemaCXX/linkage2.cpp
@@ -11,3 +11,10 @@ namespace test1 {
     void f(); // expected-error {{declaration of 'f' has a different language linkage}}
   }
 }
+
+extern "C" {
+  static void test2_f() { // expected-note {{previous definition is here}}
+  }
+  static void test2_f(int x) { // expected-error {{conflicting types for 'test2_f'}}
+  }
+}