Delete old tests that aren't used and/or useful any more.

tests/utils/recursive_import_test.dart

-// Copyright (c) 2012, 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.
-
-// Test of "recursive" imports using the dart2js compiler API.
-
-import "package:expect/expect.dart";
-import "package:async_helper/async_helper.dart";
-import 'dart:async';
-import 'dummy_compiler_test.dart';
-import 'package:compiler/compiler.dart';
-
-const String RECURSIVE_MAIN = """
-library fisk;
-import 'recurse/fisk.dart';
-main() {}
-""";
-
-main() {
-  int count = 0;
-  Future<String> provider(Uri uri) {
-    String source;
-    if (uri.path.length > 100) {
-      // Simulate an OS error.
-      throw 'Path length exceeded';
-    } else if (uri.scheme == "main") {
-      count++;
-      source = RECURSIVE_MAIN;
-    } else if (uri.scheme == "lib") {
-      source = libProvider(uri);
-    } else {
-      return new Future.error("unexpected URI $uri");
-    }
-    return new Future.value(source);
-  }
-
-  int warningCount = 0;
-  int errorCount = 0;
-  void handler(Uri uri, int begin, int end, String message, Diagnostic kind) {
-    if (uri != null) {
-      print('$uri:$begin:$end: $kind: $message');
-      Expect.equals('main', uri.scheme);
-      if (kind == Diagnostic.WARNING) {
-        warningCount++;
-      } else if (kind == Diagnostic.ERROR) {
-        errorCount++;
-      } else {
-        throw kind;
-      }
-    } else {
-      print('$kind: $message');
-    }
-  }
-
-  asyncStart();
-  Future<CompilationResult> result = compile(
-      new Uri(scheme: 'main'),
-      new Uri(scheme: 'lib', path: '/'),
-      new Uri(scheme: 'package', path: '/'),
-      provider,
-      handler);
-  result.then((CompilationResult result) {
-    Expect.isFalse(result.isSuccess);
-    Expect.isTrue(10 < count);
-    // Two warnings for each time RECURSIVE_MAIN is read, except the
-    // first time.
-    Expect.equals(2 * (count - 1), warningCount);
-    Expect.equals(1, errorCount);
-  }, onError: (e, s) {
-    throw 'Compilation failed: $e\n$s';
-  }).then(asyncSuccess);
-}