Remove backends.

compiler/javatests/com/google/dart/compiler/backend/js/SnippetTestCase.java

Index: compiler/javatests/com/google/dart/compiler/backend/js/SnippetTestCase.java
diff --git a/compiler/javatests/com/google/dart/compiler/backend/js/SnippetTestCase.java b/compiler/javatests/com/google/dart/compiler/backend/js/SnippetTestCase.java
deleted file mode 100644
index 157fad9a96e70feda4abd291fb4cd7739cdd6762..0000000000000000000000000000000000000000
--- a/compiler/javatests/com/google/dart/compiler/backend/js/SnippetTestCase.java
+++ /dev/null
@@ -1,163 +0,0 @@
-// Copyright (c) 2011, 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.
-
-package com.google.dart.compiler.backend.js;
-
-import com.google.common.base.Strings;
-import com.google.dart.compiler.CommandLineOptions.CompilerOptions;
-import com.google.dart.compiler.CompilerConfiguration;
-import com.google.dart.compiler.CompilerTestCase;
-import com.google.dart.compiler.DartCompiler;
-import com.google.dart.compiler.DartCompilerListenerTest;
-import com.google.dart.compiler.DartSourceTest;
-import com.google.dart.compiler.DefaultCompilerConfiguration;
-import com.google.dart.compiler.MockArtifactProvider;
-import com.google.dart.compiler.MockLibrarySource;
-
-import java.io.IOException;
-import java.net.URL;
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * Tests for binary expression optimizations.
- */
-public abstract class SnippetTestCase extends CompilerTestCase {
-
-  private static final String MARKER = "_marker_";
-
-  private MockArtifactProvider provider = new MockArtifactProvider();
-  private JavascriptBackend jsBackend = new JavascriptBackend();
-  protected AbstractJsBackend getBackend() {
-    return jsBackend;
-  }
-
-  @Override
-  protected void tearDown() throws Exception {
-    provider = null;
-    jsBackend = null;
-    super.tearDown();
-  }
-
-  protected String compileSingleUnit(String filePath) throws IOException {
-    return compileSingleUnit(filePath, "Main");
-  }
-
-  protected String compileSingleUnit(String filePath, String part) throws IOException {
-    URL url = inputUrlFor(getClass(), filePath + ".dart");
-    String source = readUrl(url);
-    return compileSingleUnitSource(source, part);
-  }
-
-  protected String compileSingleUnitSource(String source, String part) throws IOException {
-    MockLibrarySource lib = new MockLibrarySource();
-    DartSourceTest src = new DartSourceTest("test", source, lib);
-    lib.addSource(src);
-    CompilerOptions options = new CompilerOptions();
-    CompilerConfiguration config = new DefaultCompilerConfiguration(this.getBackend(), options);
-    DartCompilerListenerTest listener = new DartCompilerListenerTest(src.getName());
-    DartCompiler.compileLib(lib, config, provider, listener);
-    listener.checkAllErrorsReported();
-    return provider.getArtifactString(src, part, JavascriptBackend.EXTENSION_JS);
-  }
-
-  protected List<String> findMarkerLines(String js) {
-    assertNotNull(js);
-    List<String> lines = new ArrayList<String>();
-
-    int begin = 0;
-    int end = 0;
-    while (true) {
-      begin = js.indexOf(MARKER, begin);
-      if (begin < 0) {
-        break;
-      }
-      end = js.indexOf(';', begin);
-      if (end > begin) {
-        lines.add(js.substring(begin + MARKER.length(), end));
-      }
-      begin = end;
-    }
-
-    return lines;
-  }
-
-  /**
-   * Returns the specified occurence of the marker string inside of the JS code or null if there is
-   * none. Note that this method may miss the text around the specified occurence of the marker.
-   */
-  protected String findMarkerAtOccurrence(String js, String marker, int occurrence) {
-    int begin = 0;
-    int end = 0;
-    int nOccurrence = 0;
-    while (true) {
-      begin = js.indexOf(marker, begin);
-      if (begin < 0) {
-        break;
-      }
-      nOccurrence++;
-      end = js.indexOf(';', begin);
-      if (end > begin && occurrence == nOccurrence) {
-        return js.substring(begin, end);
-      }
-
-      begin = end;
-    }
-
-    return null;
-  }
-
-  /**
-   * Returns the specified occurrence of the marker string inside of the JS code by splitting the
-   * string using the specified regex and then locating the occurrence. This method allows you to
-   * control how much of the text around the marker occurence you are interested in.
-   */
-  protected String findMarkerAtOccurrence(String js, String marker, String regEx, int occurrence) {
-    int iOccurrence = 0;
-    String[] strings = js.split(regEx);
-    for (int i = 0; i < strings.length; ++i) {
-      if (strings[i].indexOf(marker) != -1) {
-        if (++iOccurrence == occurrence) {
-          return strings[i].trim();
-        }
-      }
-    }
-    return null;
-  }
-
-  protected static String replaceTemps(String js) {
-    return Strings.isNullOrEmpty(js) ? "" : js.replaceAll("tmp\\$[0-9]+", "tmp");
-  }
-
-  protected String[] getFunctionBody(String name, String corpus) {
-    assertTrue(!Strings.isNullOrEmpty(name));
-    int start = corpus.indexOf(name);
-    if (start == -1) {
-      return new String[0];
-    }
-    int len = corpus.length();
-    while (start < len && corpus.charAt(start) != '{') {
-      start++;
-    }
-    int end = start;
-    int count = 0;
-    while (end < len) {
-      if (corpus.charAt(end) == '{')
-        count++;
-      if (corpus.charAt(end) == '}')
-        count--;
-      end++;
-      if (count == 0)
-        break;
-    }
-    assert end >= start;
-    List<String> result = new ArrayList<String>();
-    for (String s : corpus.substring(start, end).split("\\n")) {
-      if (s.equals("{") || s.equals("}"))
-        continue;
-      result.add(s.trim());
-    }
-    return result.toArray(new String[0]);
-  }
-}