Implement implicit conversions for pointers-to-member.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62971 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaExprCXX.cpp b/lib/Sema/SemaExprCXX.cpp
index 1266d32..04e37d1 100644
--- a/lib/Sema/SemaExprCXX.cpp
+++ b/lib/Sema/SemaExprCXX.cpp
@@ -832,8 +832,9 @@
     break;
 
   case ICK_Pointer_Member:
-    // FIXME: Implement pointer-to-member conversions.
-    assert(false && "Pointer-to-member conversions are unsupported");
+    if (CheckMemberPointerConversion(From, ToType))
+      return true;
+    ImpCastExprToType(From, ToType);
     break;
 
   case ICK_Boolean_Conversion: