dartfmt pkg/compiler

pkg/compiler/lib/src/cps_ir/backward_null_check_remover.dart

 library dart2js.cps_ir.backward_null_check_remover;
 
 import 'cps_ir_nodes.dart';
 import 'optimizers.dart';
 import 'type_mask_system.dart';
 import 'cps_fragment.dart';
 
 /// Removes null checks that are follwed by another instruction that will
 /// perform the same check.
 ///
@@ skipping 53 matching lines @@
     }
     return null;
   }
 
   /// It has been determined that the null check in [prim] made redundant by
   /// [newNullCheck].  Eliminate [prim] if it is not needed any more.
   void tryEliminateRedundantNullCheck(Primitive prim, Primitive newNullCheck) {
     if (prim is ReceiverCheck && prim.isNullCheck) {
       Primitive value = prim.value;
       LetPrim let = prim.parent;
-      prim..replaceUsesWith(value)..destroy();
+      prim
+        ..replaceUsesWith(value)
+        ..destroy();
       let.remove();
     } else if (prim is GetLength || prim is GetField || prim is GetIndex) {
       if (prim.hasNoRefinedUses) {
         destroyRefinementsOfDeadPrimitive(prim);
         LetPrim let = prim.parent;
         prim..destroy();
         let.remove();
       }
     }
   }
@@ skipping 32 matching lines @@
   void visitLetHandler(LetHandler node) {
     nullCheckedValue = null;
   }
 
   visitInvokeContinuation(InvokeContinuation node) {
     if (!node.isRecursive) {
       nullCheckedValue = nullCheckedValueAt[node.continuation];
     }
   }
 }