Run formatter on a few frontend and kernel files that hadn't been formatted.

pkg/front_end/test/scanner_replacement_test.dart

 // Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import 'dart:convert' show UTF8;
 
 import 'package:front_end/src/fasta/scanner/precedence.dart'
     show BAD_INPUT_INFO, EOF_INFO;
 import 'package:front_end/src/fasta/scanner/recover.dart'
     show defaultRecoveryStrategy;
@@ skipping 29 matching lines @@
     if (genericMethodComments) {
       // Fasta doesn't support generic method comments.
       // TODO(danrubel): once the analyzer toolchain no longer needs generic
       // method comments, remove tests that exercise them.
       fail('No generic method comment support in Fasta');
     }
     // Note: Fasta always supports lazy assignment operators (`&&=` and `||=`),
     // so we can ignore the `lazyAssignmentOperators` flag.
     // TODO(danrubel): once lazyAssignmentOperators are fully supported by
     // Dart, remove this flag.
-    fasta.ScannerResult result = fasta.scanString(source,
-        includeComments: true,
+    fasta.ScannerResult result = fasta.scanString(source, includeComments: true,
         recover: ((List<int> bytes, fasta.Token tokens, List<int> lineStarts) {
-          // perform recovery as a separate step
-          // so that the token stream can be validated before and after recovery
-          return tokens;
-        }));
+      // perform recovery as a separate step
+      // so that the token stream can be validated before and after recovery
+      return tokens;
+    }));
     fasta.Token tokens = result.tokens;
     assertValidTokenStream(tokens);
     assertValidBeginTokens(tokens);
     if (result.hasErrors) {
       List<int> bytes = UTF8.encode(source);
       tokens = defaultRecoveryStrategy(bytes, tokens, result.lineStarts);
       assertValidTokenStream(tokens, errorsFirst: true);
     }
     return extractErrors(tokens, listener);
   }
@@ skipping 326 matching lines @@
       } else if (token is fasta.UnmatchedToken) {
         expect(lastClosedGroup?.endGroup?.next, same(token),
             reason: 'Unexpected error token for group: $lastClosedGroup');
         expect(token.begin, lastClosedGroup);
       }
       token = token.next;
     }
     expect(openerStack, isEmpty, reason: 'Missing closers');
   }
 }