[Syntax Breaking] Rename DefaultImpl to AutoImpl

DefaultImpl is a highly confusing name for what we now call auto impls,
as in `impl Send for ..`. The name auto impl is not formally decided
but for sanity anything is better than `DefaultImpl` which refers
neither to `default impl` nor to `impl Default`.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libsyntax/print/pprust.rs b/src/libsyntax/print/pprust.rs
index 8a970fd4098..487e158bfc3 100644
--- a/src/libsyntax/print/pprust.rs
+++ b/src/libsyntax/print/pprust.rs
@@ -1287,7 +1287,7 @@ impl<'a> State<'a> {
                 self.head(&visibility_qualified(&item.vis, "union"))?;
                 self.print_struct(struct_def, generics, item.ident, item.span, true)?;
             }
-            ast::ItemKind::DefaultImpl(unsafety, ref trait_ref) => {
+            ast::ItemKind::AutoImpl(unsafety, ref trait_ref) => {
                 self.head("")?;
                 self.print_visibility(&item.vis)?;
                 self.print_unsafety(unsafety)?;