Rename move_convert to move_arg and move_res. The new names are less misleading (and shorter).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62466 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseDecl.cpp b/lib/Parse/ParseDecl.cpp
index be929ae..319c03e 100644
--- a/lib/Parse/ParseDecl.cpp
+++ b/lib/Parse/ParseDecl.cpp
@@ -312,7 +312,7 @@
         SkipUntil(tok::semi);
         return 0;
       }
-      Actions.AddInitializerToDecl(LastDeclInGroup, move_convert(Init));
+      Actions.AddInitializerToDecl(LastDeclInGroup, move_arg(Init));
     } else if (Tok.is(tok::l_paren)) {
       // Parse C++ direct initializer: '(' expression-list ')'
       SourceLocation LParenLoc = ConsumeParen();