Initial implementation of "Rename Local Variable" refactoring.

editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/base/DartStringStatusContext.java

Index: editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/base/DartStringStatusContext.java
diff --git a/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/base/DartStringStatusContext.java b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/base/DartStringStatusContext.java
new file mode 100644
index 0000000000000000000000000000000000000000..f1d98e1b17e72452b766e85f0651e07f4d1f315b
--- /dev/null
+++ b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/base/DartStringStatusContext.java
@@ -0,0 +1,41 @@
+package com.google.dart.tools.internal.corext.refactoring.base;
+
+import com.google.dart.tools.core.model.SourceRange;
+
+import org.eclipse.core.runtime.Assert;
+import org.eclipse.ltk.core.refactoring.RefactoringStatusContext;
+
+/**
+ * A Dart string context can be used to annotate a </code>RefactoringStatusEntry<code>
+ * with detailed information about an error detected in Dart source code represented
+ * by a string.
+ */
+public class DartStringStatusContext extends RefactoringStatusContext {
+
+  private final String fSource;
+  private final SourceRange fSourceRange;
+
+  /**
+   * @param source the source code containing the error
+   * @param range a source range inside <code>source</code> or <code>null</code> if no special
+   *          source range is known.
+   */
+  public DartStringStatusContext(String source, SourceRange range) {
+    Assert.isNotNull(source);
+    fSource = source;
+    fSourceRange = range;
+  }
+
+  @Override
+  public Object getCorrespondingElement() {
+    return null;
+  }
+
+  public String getSource() {
+    return fSource;
+  }
+
+  public SourceRange getSourceRange() {
+    return fSourceRange;
+  }
+}