cleanup to tools/testing/dart

tools/testing/dart/lib/test_information.dart

+library test_information;
+
+import 'path.dart';
+
+class TestInformation {
+  Path filePath;
+  Path originTestPath;
+  Map optionsFromFile;
+  bool hasCompileError;
+  bool hasRuntimeError;
+  bool isNegativeIfChecked;
+  bool hasCompileErrorIfChecked;
+  bool hasStaticWarning;
+  String multitestKey;
+
+  TestInformation(this.filePath, this.originTestPath, this.optionsFromFile,
+                  this.hasCompileError, this.hasRuntimeError,
+                  this.isNegativeIfChecked, this.hasCompileErrorIfChecked,
+                  this.hasStaticWarning,
+                  {this.multitestKey: ''}) {
+    assert(filePath.isAbsolute);
+  }
+}
+
+class HtmlTestInformation extends TestInformation {
+  List<String> expectedMessages;
+  List<String> scripts;
+
+  HtmlTestInformation(Path filePath, this.expectedMessages, this.scripts)
+      : super(filePath, filePath,
+              {'isMultitest': false, 'isMultiHtmlTest': false},
+              false, false, false, false, false) {}
+}