Revert "Connect analyzer's AnalysisError object to front_end's CompilationError."

pkg/analyzer/test/generated/error_test.dart

-// Copyright (c) 2016, 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 'package:analyzer/error/error.dart';
-import 'package:analyzer/src/generated/source.dart';
-import 'package:analyzer/src/string_source.dart';
-import 'package:front_end/src/scanner/errors.dart';
-import 'package:source_span/src/span.dart';
-import 'package:test/test.dart';
-import 'package:test_reflective_loader/test_reflective_loader.dart';
-
-main() {
-  defineReflectiveSuite(() {
-    defineReflectiveTests(AnalysisErrorTest);
-  });
-}
-
-@reflectiveTest
-class AnalysisErrorTest {
-  void test_location() {
-    String text = '''
-line one
-line two
-line three
-line four
-''';
-    String path = '/source.dart';
-    Source source = new StringSource(text, path);
-    int offset = text.indexOf('thr');
-    int length = 3;
-    ErrorCode errorCode = ScannerErrorCode.UNTERMINATED_STRING_LITERAL;
-    AnalysisError error = new AnalysisError(source, offset, length, errorCode);
-    SourceSpan span = error.span;
-    expect(span.start.line, 2);
-    expect(span.start.column, 5);
-    expect(span.start.offset, offset);
-    expect(span.end.line, 2);
-    expect(span.end.column, 8);
-    expect(span.end.offset, offset + length);
-    expect(span.text, 'thr');
-    expect(span.sourceUrl, new Uri.file(path));
-  }
-}