Remove dartc optimizing backend.

dart/compiler/java/com/google/dart/compiler/common/GenerateSourceMap.java

Index: dart/compiler/java/com/google/dart/compiler/common/GenerateSourceMap.java
diff --git a/dart/compiler/java/com/google/dart/compiler/common/GenerateSourceMap.java b/dart/compiler/java/com/google/dart/compiler/common/GenerateSourceMap.java
deleted file mode 100644
index 5435b9a5069843805d8d86455aca25e31c9e3072..0000000000000000000000000000000000000000
--- a/dart/compiler/java/com/google/dart/compiler/common/GenerateSourceMap.java
+++ /dev/null
@@ -1,85 +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.common;
-
-import com.google.dart.compiler.ast.DartIdentifier;
-import com.google.dart.compiler.ast.DartPropertyAccess;
-import com.google.dart.compiler.backend.js.ast.HasName;
-import com.google.debugging.sourcemap.FilePosition;
-import com.google.debugging.sourcemap.SourceMapFormat;
-import com.google.debugging.sourcemap.SourceMapGenerator;
-import com.google.debugging.sourcemap.SourceMapGeneratorFactory;
-import com.google.debugging.sourcemap.SourceMapSection;
-
-import java.io.IOException;
-import java.util.List;
-
-/**
- * Collects information mapping the generated (compiled) source back to
- * its original source for debugging purposes.
- *
- * @author johnlenz@google.com (John Lenz)
- */
-public class GenerateSourceMap {
-
-  private final SourceMapGenerator generator;
-
-  public GenerateSourceMap() {
-    // Get the source map in the default format.
-    this.generator = SourceMapGeneratorFactory.getInstance(SourceMapFormat.V3);
-  }
-
-  /**
-   * Adds a mapping for the given node.  Mappings must be added in order.
-   *
-   * @param node The node that the new mapping represents.
-   * @param startPosition The position on the starting line
-   * @param endPosition The position on the ending line.
-   */
-  public void addMapping(
-      HasSourceInfo node, FilePosition startPosition, FilePosition endPosition) {
-    SourceInfo sourceInfo = node.getSourceInfo();
-
-    // If the node does not have an associated source file or
-    // its line number is -1, then the node does not have sufficient
-    // information for a mapping to be useful.
-    if (sourceInfo.getSource() == null || sourceInfo.getSourceLine() < 0) {
-      return;
-    }
-
-    String sourceFile = sourceInfo.getSource().getName();
-
-    String originalName = null;
-    if (node instanceof HasName) {
-      Symbol symbol = ((HasName)node).getSymbol();
-      if (symbol != null) {
-        originalName = symbol.getOriginalSymbolName();
-      }
-    } else if (node instanceof DartIdentifier) {
-      // We need a better abstraction, see bug 4188120.
-      originalName = ((DartIdentifier) node).getTargetName();
-    } else if (node instanceof DartPropertyAccess) {
-      // We need a better abstraction, see bug 4188120.
-      originalName = ((DartPropertyAccess) node).getPropertyName();
-    }
-    generator.addMapping(sourceFile, originalName, new FilePosition(
-      sourceInfo.getSourceLine(), sourceInfo.getSourceColumn()), startPosition, endPosition);
-  }
-
-  public void appendTo(Appendable out, String name) throws IOException {
-    generator.appendTo(out, name);
-  }
-
-  /**
-   * To facilitate incremental compiles, create source map that is built
-   * piecemeal from other source maps.
-   * @throws IOException
-   */
-  public void appendIndexMapTo(
-      Appendable out, String name, List<SourceMapSection> appSections)
-      throws IOException {
-    generator.appendIndexMapTo(out, name, appSections);
-  }
-}