Review nits.

Author: cjgillot

compiler/rustc_middle/src/mir/pretty.rs

@@ -430,8 +430,8 @@ fn write_scope_tree(
     // Coroutine debuginfo.
     if let Some(layout) = body.coroutine_layout_raw() {
         for (field, name) in layout.field_names.iter_enumerated() {
+            let source_info = layout.field_tys[field].source_info;
             if let Some(name) = name
-                && let source_info = layout.field_tys[field].source_info
                 && source_info.scope == parent
             {
                 let indented_debug_info =

compiler/rustc_mir_transform/src/coroutine.rs

@@ -1183,9 +1183,8 @@ fn can_unwind<'tcx>(tcx: TyCtxt<'tcx>, body: &Body<'tcx>) -> bool {
         return false;
     }
 
-    // Unwinds can only start at certain terminators.
+    // If we don't find an unwinding terminator, the function cannot unwind.
     body.basic_blocks.iter().any(|block| block.terminator().unwind().is_some())
-    // If we didn't find an unwinding terminator, the function cannot unwind.
 }
 
 // Poison the coroutine when it unwinds