Rollup merge of #37286 - srinivasreddy:graph, r=nrc

run rustfmt on graph folder

src/librustc_data_structures/graph/mod.rs

@@ -380,7 +380,7 @@ pub fn new(graph: &'g Graph<N, E>, direction: Direction) -> Self {
             graph: graph,
             stack: vec![],
             visited: visited,
-            direction: direction
+            direction: direction,
         }
     }
 
@@ -394,7 +394,7 @@ pub fn with_start_node(graph: &'g Graph<N, E>,
             graph: graph,
             stack: vec![start_node],
             visited: visited,
-            direction: direction
+            direction: direction,
         }
     }