Basic 'Quick Fix' support and one fix as example/test

editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/text/correction/proposals/MarkerResolutionProposal.java

Index: editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/text/correction/proposals/MarkerResolutionProposal.java
diff --git a/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/text/correction/proposals/MarkerResolutionProposal.java b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/text/correction/proposals/MarkerResolutionProposal.java
new file mode 100644
index 0000000000000000000000000000000000000000..9c47c7dfab98a1600a4fdce273ba1e49f6157afc
--- /dev/null
+++ b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/text/correction/proposals/MarkerResolutionProposal.java
@@ -0,0 +1,95 @@
+package com.google.dart.tools.ui.internal.text.correction.proposals;
+
+import com.google.dart.tools.internal.corext.refactoring.util.Messages;
+import com.google.dart.tools.ui.DartPluginImages;
+import com.google.dart.tools.ui.DartToolsPlugin;
+import com.google.dart.tools.ui.internal.text.correction.CorrectionMessages;
+import com.google.dart.tools.ui.text.dart.IDartCompletionProposal;
+
+import org.eclipse.core.resources.IMarker;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.contentassist.IContextInformation;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.ui.IMarkerResolution;
+import org.eclipse.ui.IMarkerResolution2;
+
+public class MarkerResolutionProposal implements IDartCompletionProposal {
+
+  private IMarkerResolution fResolution;
+  private IMarker fMarker;
+
+  /**
+   * Constructor for MarkerResolutionProposal.
+   * 
+   * @param resolution the marker resolution
+   * @param marker the marker
+   */
+  public MarkerResolutionProposal(IMarkerResolution resolution, IMarker marker) {
+    fResolution = resolution;
+    fMarker = marker;
+  }
+
+  @Override
+  public void apply(IDocument document) {
+    fResolution.run(fMarker);
+  }
+
+  @Override
+  public String getAdditionalProposalInfo() {
+    if (fResolution instanceof IMarkerResolution2) {
+      return ((IMarkerResolution2) fResolution).getDescription();
+    }
+    if (fResolution instanceof IDartCompletionProposal) {
+      return ((IDartCompletionProposal) fResolution).getAdditionalProposalInfo();
+    }
+    try {
+      String problemDesc = (String) fMarker.getAttribute(IMarker.MESSAGE);
+      return Messages.format(
+          CorrectionMessages.MarkerResolutionProposal_additionaldesc,
+          problemDesc);
+    } catch (CoreException e) {
+      DartToolsPlugin.log(e);
+    }
+    return null;
+  }
+
+  @Override
+  public IContextInformation getContextInformation() {
+    return null;
+  }
+
+  @Override
+  public String getDisplayString() {
+    return fResolution.getLabel();
+  }
+
+  @Override
+  public Image getImage() {
+    if (fResolution instanceof IMarkerResolution2) {
+      return ((IMarkerResolution2) fResolution).getImage();
+    }
+    if (fResolution instanceof IDartCompletionProposal) {
+      return ((IDartCompletionProposal) fResolution).getImage();
+    }
+    return DartPluginImages.get(DartPluginImages.IMG_CORRECTION_CHANGE);
+  }
+
+  @Override
+  public int getRelevance() {
+    if (fResolution instanceof IDartCompletionProposal) {
+      return ((IDartCompletionProposal) fResolution).getRelevance();
+    }
+    return 10;
+  }
+
+  @Override
+  public Point getSelection(IDocument document) {
+    if (fResolution instanceof IDartCompletionProposal) {
+      return ((IDartCompletionProposal) fResolution).getSelection(document);
+    }
+    return null;
+  }
+
+}