Remove usage of DUMMY_HIR_ID in FnCtxt::get_conversion_methods

Author: marmeladema

src/librustc_typeck/check/demand.rs

@@ -217,14 +217,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         span: Span,
         expected: Ty<'tcx>,
         checked_ty: Ty<'tcx>,
+        hir_id: hir::HirId,
     ) -> Vec<AssocItem> {
-        let mut methods = self.probe_for_return_type(
-            span,
-            probe::Mode::MethodCall,
-            expected,
-            checked_ty,
-            hir::DUMMY_HIR_ID,
-        );
+        let mut methods =
+            self.probe_for_return_type(span, probe::Mode::MethodCall, expected, checked_ty, hir_id);
         methods.retain(|m| {
             self.has_no_input_arg(m)
                 && self

src/librustc_typeck/check/mod.rs

@@ -5000,7 +5000,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         } else if !self.check_for_cast(err, expr, found, expected) {
             let is_struct_pat_shorthand_field =
                 self.is_hir_id_from_struct_pattern_shorthand_field(expr.hir_id, expr.span);
-            let methods = self.get_conversion_methods(expr.span, expected, found);
+            let methods = self.get_conversion_methods(expr.span, expected, found, expr.hir_id);
             if let Ok(expr_text) = self.sess().source_map().span_to_snippet(expr.span) {
                 let mut suggestions = iter::repeat(&expr_text)
                     .zip(methods.iter())