fix EUV delegate to take advantage of defaults. This also

nikomatsakis · nikomatsakis · commit 013c37a69247 · 2015-09-06T07:27:23.000-04:00
works around a stage0 bug that has since been fixed.
diff --git a/src/librustc/middle/expr_use_visitor.rs b/src/librustc/middle/expr_use_visitor.rs
@@ -246,7 +246,7 @@ impl OverloadedCallType {
 pub struct ExprUseVisitor<'d, 't, 'a: 't, 'tcx:'a+'d+'t> {
     typer: &'t infer::InferCtxt<'a, 'tcx>,
     mc: mc::MemCategorizationContext<'t, 'a, 'tcx>,
-    delegate: &'d mut (Delegate<'tcx>+'d),
+    delegate: &'d mut Delegate<'tcx>,
 }
 
 // If the TYPER results in an error, it's because the type check

Original file line number	Diff line number	Diff line change
`@@ -246,7 +246,7 @@ impl OverloadedCallType {`
`246`	`246`	`pub struct ExprUseVisitor<'d, 't, 'a: 't, 'tcx:'a+'d+'t> {`
`247`	`247`	`typer: &'t infer::InferCtxt<'a, 'tcx>,`
`248`	`248`	`mc: mc::MemCategorizationContext<'t, 'a, 'tcx>,`
`249`		`- delegate: &'d mut (Delegate<'tcx>+'d),`
	`249`	`+ delegate: &'d mut Delegate<'tcx>,`
`250`	`250`	`}`
`251`	`251`
`252`	`252`	`// If the TYPER results in an error, it's because the type check`