Map from local decl IDs to global decl IDs when lazily deserializing friend decl chains.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189629 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Modules/cxx-decls.cpp b/test/Modules/cxx-decls.cpp
index 733e3f9..ba3281a 100644
--- a/test/Modules/cxx-decls.cpp
+++ b/test/Modules/cxx-decls.cpp
@@ -3,6 +3,7 @@
 
 // expected-no-diagnostics
 
+@import dummy;
 @import cxx_decls.imported;
 
 void test_delete(int *p) {
@@ -10,3 +11,11 @@
   // ever been explicitly declared in an unimported submodule.
   delete p;
 }
+
+void friend_1(HasFriends s) {
+  s.private_thing();
+}
+void test_friends(HasFriends s) {
+  friend_1(s);
+  friend_2(s);
+}