update_all: remove user-dependent part of assertion file path

pkg/compiler/tool/status_files/log_parser.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.
 
 library status_files.log_parser;
 
 import 'record.dart';
 
 final RegExp _stackRE = new RegExp('#[0-9]* ');
+final RegExp _assertionFileRE = new RegExp(r"'file:[^']*/sdk/pkg/");
+final String _assertionFileReplacement = r"'file:*/pkg/";
 
 /// Extracts test records from a test.py [log].
 List<Record> parse(String log) {
   var records = [];
   var suite;
   var test;
   var config;
   var expected;
   var actual;
   var reason;
@@ skipping 17 matching lines @@
           .replaceAll('release_x64', '');
     }
     if (line.startsWith("Expected: ")) {
       expected = line.substring("Expected: ".length).trim();
     }
     if (line.startsWith("Actual: ")) {
       actual = line.substring("Actual: ".length).trim();
     }
     if (line.startsWith("The compiler crashed:")) {
       reason = line.substring("The compiler crashed:".length).trim();
+      reason = reason.replaceFirst(_assertionFileRE, _assertionFileReplacement);
       paragraph.clear();
     }
 
     if (line.startsWith(_stackRE)) {
       stack.add(line);
       fullReason ??= paragraph.take(5).join('\n');
       paragraph.clear();
     } else {
       paragraph.add(line);
     }
 
     if (reproIsNext) {
       records.add(new Record(suite, test, config, expected, actual, reason,
           line.trim(), fullReason, stack));
       suite = test = config = expected = actual = reason = null;
       stack = [];
       fullReason = null;
       paragraph.clear();
       reproIsNext = false;
     }
     if (line.startsWith("Short reproduction command (experimental):")) {
       reproIsNext = true;
     }
   }
   return records;
 }