Fix this for real.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80377 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDeclCXX.cpp b/lib/Sema/SemaDeclCXX.cpp
index 31dc8b9..377a9de 100644
--- a/lib/Sema/SemaDeclCXX.cpp
+++ b/lib/Sema/SemaDeclCXX.cpp
@@ -2785,7 +2785,8 @@
       Constructor = cast<CXXConstructorDecl>(*Con);
 
     if ((Kind == IK_Direct) ||
-        (Kind == IK_Copy && Constructor->isConvertingConstructor()) ||
+        (Kind == IK_Copy && 
+         Constructor->isConvertingConstructor(/*AllowExplicit=*/false)) ||
         (Kind == IK_Default && Constructor->isDefaultConstructor())) {
       if (ConstructorTmpl)
         AddTemplateOverloadCandidate(ConstructorTmpl, false, 0, 0,