Emit code for linkage specifications.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68300 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenModule.h b/lib/CodeGen/CodeGenModule.h
index c0dbbf8..8661d23 100644
--- a/lib/CodeGen/CodeGenModule.h
+++ b/lib/CodeGen/CodeGenModule.h
@@ -328,6 +328,7 @@
   void EmitAliasDefinition(const ValueDecl *D);
   void EmitObjCPropertyImplementations(const ObjCImplementationDecl *D);
   void EmitNamespace(const NamespaceDecl *D);
+  void EmitLinkageSpec(const LinkageSpecDecl *D);
   
   // FIXME: Hardcoding priority here is gross.
   void AddGlobalCtor(llvm::Function * Ctor, int Priority=65535);