Rollup merge of #67071 - estebank:issue-66868, r=davidtwco

Do not ICE on closure typeck

Tackle #66868.

r? @davidtwco

src/librustc/traits/error_reporting.rs

@@ -2210,6 +2210,10 @@ fn note_obligation_cause_for_async_await(
         }
 
         let span = self.tcx.def_span(generator_did);
+        // Do not ICE on closure typeck (#66868).
+        if let None = self.tcx.hir().as_local_hir_id(generator_did) {
+            return false;
+        }
         let tables = self.tcx.typeck_tables_of(generator_did);
         debug!("note_obligation_cause_for_async_await: generator_did={:?} span={:?} ",
                generator_did, span);