Revert "[kernel] offsets on direct property get/set"

runtime/observatory/tests/service/step_through_property_set_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 'test_helper.dart';
-import 'service_test_common.dart';
-
-const int LINE = 33;
-const String file = "step_through_property_set_test.dart";
-
-code() {
-  Bar bar = new Bar();
-  bar.doStuff();
-}
-
-class Foo {
-  final List<String> data1;
-
-  Foo() : data1 = ["a", "b", "c"];
-
-  void doStuff() {
-    data1[1] = 'x';
-    print(data1[1]);
-  }
-}
-
-class Bar extends Foo {
-  final List<String> data2;
-
-  Bar() : data2 = ["d", "e", "f"];
-
-  void doStuff() {
-    data2[1] = '1';
-    print(data2[1]);
-
-    data1[1] = '2';
-    print(data1[1]);
-
-    super.data1[1] = '42';
-    print(super.data1[1]);
-  }
-}
-
-List<String> stops = [];
-List<String> expected = [
-  "$file:${LINE+0}:5", // on 'data2'
-  "$file:${LINE+0}:10", // on '['
-  "$file:${LINE+1}:11", // on 'data2'
-  "$file:${LINE+1}:16", // on '['
-  "$file:${LINE+1}:5", // on 'print'
-
-  "$file:${LINE+3}:5", // on 'data1'
-  "$file:${LINE+3}:10", // on '['
-  "$file:${LINE+4}:11", // on 'data1'
-  "$file:${LINE+4}:16", // on '['
-  "$file:${LINE+4}:5", // on 'print'
-
-  "$file:${LINE+6}:11", // on 'data1'
-  "$file:${LINE+6}:16", // on '['
-  "$file:${LINE+7}:17", // on 'data1'
-  "$file:${LINE+7}:22", // on '['
-  "$file:${LINE+7}:5", // on 'print'
-
-  "$file:${LINE+8}:3" // on ending '}'
-];
-
-var tests = [
-  hasPausedAtStart,
-  setBreakpointAtLine(LINE),
-  runStepIntoThroughProgramRecordingStops(stops),
-  checkRecordedStops(stops, expected,
-      debugPrint: true, debugPrintFile: file, debugPrintLine: LINE)
-];
-
-main(args) {
-  runIsolateTestsSynchronous(args, tests,
-      testeeConcurrent: code, pause_on_start: true, pause_on_exit: true);
-}