Issue 5628. Quick fixes should suggest to use existing element with close name

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

Index: editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/text/correction/QuickFixProcessor.java
diff --git a/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/text/correction/QuickFixProcessor.java b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/text/correction/QuickFixProcessor.java
index 0f4a5643dbf7bfd93797a7eb36aa73bb81fbfd48..b20a91046e4d8126bfe490b2df5d6f6f2830e06f 100644
--- a/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/text/correction/QuickFixProcessor.java
+++ b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/internal/text/correction/QuickFixProcessor.java
@@ -26,6 +26,7 @@ import com.google.dart.compiler.ErrorCode;
 import com.google.dart.compiler.PackageLibraryManager;
 import com.google.dart.compiler.Source;
 import com.google.dart.compiler.ast.ASTNodes;
+import com.google.dart.compiler.ast.DartClass;
 import com.google.dart.compiler.ast.DartClassMember;
 import com.google.dart.compiler.ast.DartDirective;
 import com.google.dart.compiler.ast.DartExpression;
@@ -45,6 +46,8 @@ import com.google.dart.compiler.common.SourceInfo;
 import com.google.dart.compiler.resolver.ClassElement;
 import com.google.dart.compiler.resolver.Element;
 import com.google.dart.compiler.resolver.ElementKind;
+import com.google.dart.compiler.resolver.Elements;
+import com.google.dart.compiler.resolver.LibraryElement;
 import com.google.dart.compiler.resolver.MethodElement;
 import com.google.dart.compiler.resolver.ResolverErrorCode;
 import com.google.dart.compiler.resolver.TypeErrorCode;
@@ -112,14 +115,42 @@ import java.util.Set;
  * @coverage dart.editor.ui.correction
  */
 public class QuickFixProcessor implements IQuickFixProcessor {
-  private static final int DEFAULT_RELEVANCE = 50;
+  /**
+   * Helper for finding {@link Element} with name closest to the given.
+   */
+  private static class ClosestElementFinder {
+    private final Class<?> targetClass;
+    private final String targetName;
+    Element element = null;
+    int distance = Integer.MAX_VALUE;
+
+    public ClosestElementFinder(Class<?> targetClass, String targetName) {
+      this.targetClass = targetClass;
+      this.targetName = targetName;
+    }
+
+    void update(Element member) {
+      if (targetClass.isInstance(member)) {
+        int memberDistance = StringUtils.getLevenshteinDistance(member.getName(), targetName);
+        if (memberDistance < distance) {
+          element = member;
+          distance = memberDistance;
+        }
+      }
+    }
 
+    void update(Iterable<? extends Element> members) {
+      for (Element member : members) {
+        update(member);
+      }
+    }
+  }
+
+  private static final int DEFAULT_RELEVANCE = 50;
   private static final DartElementImageDescriptor OBJ_CONSTRUCTOR_DESC = new DartElementImageDescriptor(
       DartPluginImages.DESC_MISC_PUBLIC,
       DartElementImageDescriptor.CONSTRUCTOR,
       DartElementImageProvider.SMALL_SIZE);
-  private static final Image OBJ_CONSTRUCTOR_IMG = DartToolsPlugin.getImageDescriptorRegistry().get(
-      OBJ_CONSTRUCTOR_DESC);
 
 //  private static ReplaceEdit createInsertEdit(int offset, String text) {
 //    return new ReplaceEdit(offset, 0, text);
@@ -129,6 +160,9 @@ public class QuickFixProcessor implements IQuickFixProcessor {
 //    return createReplaceEdit(range, "");
 //  }
 
+  private static final Image OBJ_CONSTRUCTOR_IMG = DartToolsPlugin.getImageDescriptorRegistry().get(
+      OBJ_CONSTRUCTOR_DESC);
+
   private static void addSuperTypeProposals(SourceBuilder sb, Set<Type> alreadyAdded, Type type) {
     if (type != null && !alreadyAdded.contains(type) && type.getElement() instanceof ClassElement) {
       alreadyAdded.add(type);
@@ -183,12 +217,13 @@ public class QuickFixProcessor implements IQuickFixProcessor {
 
   private CompilationUnit unit;
   private ExtractUtils utils;
-  private DartNode node;
 
+  private DartNode node;
   private final List<ICommandAccess> proposals = Lists.newArrayList();
   private int proposalRelevance = DEFAULT_RELEVANCE;
   private final List<TextEdit> textEdits = Lists.newArrayList();
   private final Map<String, List<TrackedNodePosition>> linkedPositions = Maps.newHashMap();
+
   private final Map<String, List<TrackedNodeProposal>> linkedPositionProposals = Maps.newHashMap();
 
   private LinkedCorrectionProposal proposal;
@@ -210,7 +245,8 @@ public class QuickFixProcessor implements IQuickFixProcessor {
             if (errorCode == ResolverErrorCode.CANNOT_RESOLVE_METHOD
                 || errorCode == ResolverErrorCode.CANNOT_RESOLVE_METHOD_IN_CLASS
                 || errorCode == TypeErrorCode.INTERFACE_HAS_NO_METHOD_NAMED) {
-              addFix_createUnresolvedMethod(location);
+              addFix_unresolvedMethodSimilar(location);
+              addFix_unresolvedMethodCreate(location);
             }
             if (errorCode == TypeErrorCode.IS_STATIC_METHOD_IN) {
               addFix_useStaticAccess_method(location);
@@ -218,7 +254,8 @@ public class QuickFixProcessor implements IQuickFixProcessor {
             if (errorCode == TypeErrorCode.NO_SUCH_TYPE
                 || errorCode == TypeErrorCode.CANNOT_BE_RESOLVED) {
               addFix_importLibrary_withType(location);
-              addFix_createClass(location);
+              addFix_unresolvedClass_useSimilar(location);
+              addFix_unresolvedClass_create(location);
             }
             if (errorCode == ResolverErrorCode.CANNOT_RESOLVE_METHOD) {
               addFix_importLibrary_withFunction(location);
@@ -248,46 +285,6 @@ public class QuickFixProcessor implements IQuickFixProcessor {
         || errorCode == ResolverErrorCode.NEW_EXPRESSION_NOT_CONSTRUCTOR;
   }
 
-  private void addFix_createClass(IProblemLocation location) {
-    if (mayBeTypeIdentifier(node)) {
-      String name = ((DartIdentifier) node).getName();
-      // prepare environment
-      String eol = utils.getEndOfLine();
-      DartClassMember<?> enclosingMember = ASTNodes.getAncestor(node, DartClassMember.class);
-      String prefix = utils.getNodePrefix(enclosingMember);
-      SourceRange range = SourceRangeFactory.forEndLength(enclosingMember, 0);
-      //
-      SourceBuilder sb = new SourceBuilder(range);
-      {
-        sb.append(eol + eol);
-        sb.append(prefix);
-        // "class"
-        sb.append("class ");
-        // append name
-        {
-          sb.startPosition("NAME");
-          sb.append(name);
-          sb.endPosition();
-        }
-        // no members
-        sb.append(" {");
-        sb.append(eol);
-        sb.append("}");
-      }
-      // insert source
-      addReplaceEdit(range, sb.toString());
-      // add linked positions
-      addLinkedPosition("NAME", TrackedPositions.forNode(node));
-      addLinkedPositions(sb);
-      // add proposal
-      addUnitCorrectionProposal(
-          unit,
-          TextFileChange.FORCE_SAVE,
-          Messages.format(CorrectionMessages.QuickFixProcessor_createClass, name),
-          DartPluginImages.get(DartPluginImages.IMG_OBJS_CLASS));
-    }
-  }
-
   private void addFix_createConstructor() {
     DartNewExpression newExpression = null;
     DartNode nameNode = null;
@@ -340,7 +337,7 @@ public class QuickFixProcessor implements IQuickFixProcessor {
           sb.endPosition();
         }
       }
-      addFix_createUnresolvedMethod_parameters(sb, newExpression);
+      addFix_unresolvedMethodCreate_parameters(sb, newExpression);
       sb.append(") {" + eol + prefix + "}");
       sb.append(eol);
     }
@@ -360,7 +357,189 @@ public class QuickFixProcessor implements IQuickFixProcessor {
     }
   }
 
-  private void addFix_createUnresolvedMethod(IProblemLocation location) throws Exception {
+  private void addFix_importLibrary(String importPath) throws Exception {
+    CompilationUnit libraryUnit = unit.getLibrary().getDefiningCompilationUnit();
+    // prepare new import location
+    SourceRange range;
+    String prefix;
+    String suffix;
+    {
+      String eol = utils.getEndOfLine();
+      // if no directives
+      range = SourceRangeFactory.forStartEnd(0, 0);
+      prefix = "";
+      suffix = eol;
+      // after last directive in library
+      {
+        DartUnit libraryUnitNode = DartCompilerUtilities.parseUnit(libraryUnit);
+        for (DartDirective directive : libraryUnitNode.getDirectives()) {
+          if (directive instanceof DartLibraryDirective || directive instanceof DartImportDirective) {
+            range = SourceRangeFactory.forEndLength(directive, 0);
+            prefix = eol;
+            suffix = "";
+          }
+        }
+      }
+    }
+    // insert new import
+    String importSource = prefix + "import '" + importPath + "';" + suffix;
+    addReplaceEdit(range, importSource);
+    // add proposal
+    proposalRelevance += 1;
+    addUnitCorrectionProposal(
+        libraryUnit,
+        TextFileChange.FORCE_SAVE,
+        Messages.format(CorrectionMessages.QuickFixProcessor_importLibrary, importPath),
+        DartPluginImages.get(DartPluginImages.IMG_CORRECTION_CHANGE));
+  }
+
+  private void addFix_importLibrary_withElement(String name) throws Exception {
+    // ignore if private
+    if (name.startsWith("_")) {
+      return;
+    }
+    // prepare base URI
+    CompilationUnit libraryUnit = unit.getLibrary().getDefiningCompilationUnit();
+    URI unitNormalizedUri;
+    {
+      URI unitUri = libraryUnit.getUnderlyingResource().getLocationURI();
+      unitNormalizedUri = unitUri.resolve(".").normalize();
+    }
+    // may be there is existing import, but it is with prefix and we don't use this prefix
+    for (DartImport imp : unit.getLibrary().getImports()) {
+      String prefix = imp.getPrefix();
+      if (!StringUtils.isEmpty(prefix) && imp.getLibrary().findTopLevelElement(name) != null) {
+        SourceRange range = SourceRangeFactory.forStartLength(node, 0);
+        addReplaceEdit(range, prefix + ".");
+        // add proposal
+        proposalRelevance += 2;
+        addUnitCorrectionProposal(
+            libraryUnit,
+            TextFileChange.FORCE_SAVE,
+            Messages.format(
+                CorrectionMessages.QuickFixProcessor_importLibrary_addPrefix,
+                new Object[] {getSource(imp.getUriRange()), prefix}),
+            DartPluginImages.get(DartPluginImages.IMG_CORRECTION_CHANGE));
+      }
+    }
+    // prepare Dart model
+    DartModel model = DartCore.create(ResourcesPlugin.getWorkspace().getRoot());
+    // check workspace libraries
+    for (DartProject project : model.getDartProjects()) {
+      for (DartLibrary library : project.getDartLibraries()) {
+        if (library.findTopLevelElement(name) != null) {
+          URI libraryUri = library.getUri();
+          URI libraryRelativeUri = unitNormalizedUri.relativize(libraryUri);
+          if (StringUtils.isEmpty(libraryRelativeUri.getScheme())) {
+            String importPath = libraryRelativeUri.toString();
+            addFix_importLibrary(importPath);
+          }
+        }
+      }
+    }
+    // check SDK libraries
+    PackageLibraryManager libraryManager = PackageLibraryManagerProvider.getPackageLibraryManager();
+    for (DartLibrary library : model.getBundledLibraries()) {
+      if (library.findTopLevelElement(name) != null) {
+        URI libraryUri = library.getUri();
+        URI libraryShortUri = libraryManager.getShortUri(libraryUri);
+        if (libraryShortUri != null) {
+          String importPath = libraryShortUri.toString();
+          addFix_importLibrary(importPath);
+        }
+      }
+    }
+  }
+
+  private void addFix_importLibrary_withField(IProblemLocation location) throws Exception {
+    if (node instanceof DartIdentifier) {
+      String name = ((DartIdentifier) node).getName();
+      addFix_importLibrary_withElement(name);
+    }
+  }
+
+  private void addFix_importLibrary_withFunction(IProblemLocation location) throws Exception {
+    if (node instanceof DartIdentifier
+        && getLocationInParent(node) == DART_METHOD_INVOCATION_TARGET) {
+      String name = ((DartIdentifier) node).getName();
+      addFix_importLibrary_withElement(name);
+    }
+  }
+
+  private void addFix_importLibrary_withType(IProblemLocation location) throws Exception {
+    if (mayBeTypeIdentifier(node)) {
+      String typeName = ((DartIdentifier) node).getName();
+      addFix_importLibrary_withElement(typeName);
+    }
+  }
+
+  private void addFix_unresolvedClass_create(IProblemLocation location) {
+    if (mayBeTypeIdentifier(node)) {
+      String name = ((DartIdentifier) node).getName();
+      // prepare environment
+      String eol = utils.getEndOfLine();
+      DartClassMember<?> enclosingMember = ASTNodes.getAncestor(node, DartClassMember.class);
+      String prefix = utils.getNodePrefix(enclosingMember);
+      SourceRange range = SourceRangeFactory.forEndLength(enclosingMember, 0);
+      //
+      SourceBuilder sb = new SourceBuilder(range);
+      {
+        sb.append(eol + eol);
+        sb.append(prefix);
+        // "class"
+        sb.append("class ");
+        // append name
+        {
+          sb.startPosition("NAME");
+          sb.append(name);
+          sb.endPosition();
+        }
+        // no members
+        sb.append(" {");
+        sb.append(eol);
+        sb.append("}");
+      }
+      // insert source
+      addReplaceEdit(range, sb.toString());
+      // add linked positions
+      addLinkedPosition("NAME", TrackedPositions.forNode(node));
+      addLinkedPositions(sb);
+      // add proposal
+      addUnitCorrectionProposal(
+          unit,
+          TextFileChange.FORCE_SAVE,
+          Messages.format(CorrectionMessages.QuickFixProcessor_createClass, name),
+          DartPluginImages.get(DartPluginImages.IMG_OBJS_CLASS));
+    }
+  }
+
+  private void addFix_unresolvedClass_useSimilar(IProblemLocation location) {
+    if (mayBeTypeIdentifier(node)) {
+      String name = ((DartIdentifier) node).getName();
+      ClosestElementFinder finder = new ClosestElementFinder(ClassElement.class, name);
+      // find closest element
+      {
+        DartUnit enclosingUnit = ASTNodes.getAncestor(node, DartUnit.class);
+        LibraryElement enclosingLibrary = enclosingUnit.getLibrary().getElement();
+        finder.update(enclosingLibrary.getImportScope().getElements().values());
+        finder.update(enclosingLibrary.getScope().getElements().values());
+      }
+      // if we have close enough element, suggest to use it
+      if (finder != null && finder.distance < 5) {
+        String closestName = finder.element.getName();
+        addReplaceEdit(SourceRangeFactory.create(node), closestName);
+        // add proposal
+        if (closestName != null) {
+          proposalRelevance += 1;
+          addUnitCorrectionProposal(
+              Messages.format(CorrectionMessages.QuickFixProcessor_changeTo, closestName),
+              DartPluginImages.get(DartPluginImages.IMG_CORRECTION_CHANGE));
+        }
+      }
+    }
+  }
+
+  private void addFix_unresolvedMethodCreate(IProblemLocation location) throws Exception {
     if (node instanceof DartIdentifier && node.getParent() instanceof DartInvocation) {
       String name = ((DartIdentifier) node).getName();
       DartInvocation invocation = (DartInvocation) node.getParent();
@@ -407,7 +586,7 @@ public class QuickFixProcessor implements IQuickFixProcessor {
         }
         // may be return type
         {
-          Type type = addFix_createUnresolvedMethod_getReturnType(invocation);
+          Type type = addFix_unresolvedMethodCreate_getReturnType(invocation);
           if (type != null) {
             sb.startPosition("RETURN_TYPE");
             sb.append(ExtractUtils.getTypeSource(type));
@@ -421,7 +600,7 @@ public class QuickFixProcessor implements IQuickFixProcessor {
           sb.append(name);
           sb.endPosition();
         }
-        addFix_createUnresolvedMethod_parameters(sb, invocation);
+        addFix_unresolvedMethodCreate_parameters(sb, invocation);
         sb.append(") {" + eol + prefix + "}");
         sb.append(sourceSuffix);
       }
@@ -445,7 +624,7 @@ public class QuickFixProcessor implements IQuickFixProcessor {
    * @return the possible return {@link Type}, may be <code>null</code> if can not be identified.
    *         {@link TypeKind#DYNAMIC} also returned as <code>null</code>.
    */
-  private Type addFix_createUnresolvedMethod_getReturnType(DartInvocation invocation) {
+  private Type addFix_unresolvedMethodCreate_getReturnType(DartInvocation invocation) {
     Type type = null;
     StructuralPropertyDescriptor invocationLocation = getLocationInParent(invocation);
     if (invocationLocation == DART_VARIABLE_VALUE) {
@@ -458,7 +637,7 @@ public class QuickFixProcessor implements IQuickFixProcessor {
     return type;
   }
 
-  private void addFix_createUnresolvedMethod_parameters(SourceBuilder sb, DartInvocation invocation) {
+  private void addFix_unresolvedMethodCreate_parameters(SourceBuilder sb, DartInvocation invocation) {
     // append parameters
     sb.append("(");
     Set<String> excluded = Sets.newHashSet();
@@ -494,119 +673,54 @@ public class QuickFixProcessor implements IQuickFixProcessor {
     }
   }
 
-  private void addFix_importLibrary(String importPath) throws Exception {
-    CompilationUnit libraryUnit = unit.getLibrary().getDefiningCompilationUnit();
-    // prepare new import location
-    SourceRange range;
-    String prefix;
-    String suffix;
-    {
-      String eol = utils.getEndOfLine();
-      // if no directives
-      range = SourceRangeFactory.forStartEnd(0, 0);
-      prefix = "";
-      suffix = eol;
-      // after last directive in library
-      {
-        DartUnit libraryUnitNode = DartCompilerUtilities.parseUnit(libraryUnit);
-        for (DartDirective directive : libraryUnitNode.getDirectives()) {
-          if (directive instanceof DartLibraryDirective || directive instanceof DartImportDirective) {
-            range = SourceRangeFactory.forEndLength(directive, 0);
-            prefix = eol;
-            suffix = "";
+  private void addFix_unresolvedMethodSimilar(IProblemLocation location) throws Exception {
+    if (node instanceof DartIdentifier && node.getParent() instanceof DartInvocation) {
+      DartInvocation invocation = (DartInvocation) node.getParent();
+      String name = ((DartIdentifier) node).getName();
+      String closestName = null;
+      ClosestElementFinder finder = new ClosestElementFinder(MethodElement.class, name);
+      // unqualified invocation
+      if (invocation instanceof DartUnqualifiedInvocation
+          && ((DartUnqualifiedInvocation) invocation).getTarget() == node) {
+        // may be invocation of method
+        {
+          DartClass enclosingClass = ASTNodes.getAncestor(invocation, DartClass.class);
+          if (enclosingClass != null) {
+            List<Element> allMembers = Elements.getAllMembers(enclosingClass.getElement());
+            finder.update(allMembers);
           }
         }
-      }
-    }
-    // insert new import
-    String importSource = prefix + "import '" + importPath + "';" + suffix;
-    addReplaceEdit(range, importSource);
-    // add proposal
-    proposalRelevance += 1;
-    addUnitCorrectionProposal(
-        libraryUnit,
-        TextFileChange.FORCE_SAVE,
-        Messages.format(CorrectionMessages.QuickFixProcessor_importLibrary, importPath),
-        DartPluginImages.get(DartPluginImages.IMG_CORRECTION_CHANGE));
-  }
-
-  private void addFix_importLibrary_withElement(String name) throws Exception {
-    // ignore if private
-    if (name.startsWith("_")) {
-      return;
-    }
-    // prepare base URI
-    CompilationUnit libraryUnit = unit.getLibrary().getDefiningCompilationUnit();
-    URI unitNormalizedUri;
-    {
-      URI unitUri = libraryUnit.getUnderlyingResource().getLocationURI();
-      unitNormalizedUri = unitUri.resolve(".").normalize();
-    }
-    // may be there is existing import, but it is with prefix and we don't use this prefix
-    for (DartImport imp : unit.getLibrary().getImports()) {
-      String prefix = imp.getPrefix();
-      if (!StringUtils.isEmpty(prefix) && imp.getLibrary().findTopLevelElement(name) != null) {
-        SourceRange range = SourceRangeFactory.forStartLength(node, 0);
-        addReplaceEdit(range, prefix + ".");
-        // add proposal
-        proposalRelevance += 2;
-        addUnitCorrectionProposal(
-            libraryUnit,
-            TextFileChange.FORCE_SAVE,
-            Messages.format(
-                CorrectionMessages.QuickFixProcessor_importLibrary_addPrefix,
-                new Object[] {getSource(imp.getUriRange()), prefix}),
-            DartPluginImages.get(DartPluginImages.IMG_CORRECTION_CHANGE));
-      }
-    }
-    // prepare Dart model
-    DartModel model = DartCore.create(ResourcesPlugin.getWorkspace().getRoot());
-    // check workspace libraries
-    for (DartProject project : model.getDartProjects()) {
-      for (DartLibrary library : project.getDartLibraries()) {
-        if (library.findTopLevelElement(name) != null) {
-          URI libraryUri = library.getUri();
-          URI libraryRelativeUri = unitNormalizedUri.relativize(libraryUri);
-          if (StringUtils.isEmpty(libraryRelativeUri.getScheme())) {
-            String importPath = libraryRelativeUri.toString();
-            addFix_importLibrary(importPath);
-          }
+        // may be invocation of top-level function
+        {
+          DartUnit enclosingUnit = ASTNodes.getAncestor(invocation, DartUnit.class);
+          LibraryElement enclosingLibrary = enclosingUnit.getLibrary().getElement();
+          finder.update(enclosingLibrary.getImportScope().getElements().values());
+          finder.update(enclosingLibrary.getScope().getElements().values());
         }
       }
-    }
-    // check SDK libraries
-    PackageLibraryManager libraryManager = PackageLibraryManagerProvider.getPackageLibraryManager();
-    for (DartLibrary library : model.getBundledLibraries()) {
-      if (library.findTopLevelElement(name) != null) {
-        URI libraryUri = library.getUri();
-        URI libraryShortUri = libraryManager.getShortUri(libraryUri);
-        if (libraryShortUri != null) {
-          String importPath = libraryShortUri.toString();
-          addFix_importLibrary(importPath);
+      // qualified invocation
+      if (invocation instanceof DartMethodInvocation
+          && ((DartMethodInvocation) invocation).getFunctionName() == node) {
+        DartExpression targetExpression = ((DartMethodInvocation) invocation).getRealTarget();
+        Element targetElement = getTypeElement(targetExpression);
+        if (targetElement instanceof ClassElement) {
+          ClassElement targetClassElement = (ClassElement) targetElement;
+          List<Element> allMembers = Elements.getAllMembers(targetClassElement);
+          finder.update(allMembers);
         }
       }
-    }
-  }
-
-  private void addFix_importLibrary_withField(IProblemLocation location) throws Exception {
-    if (node instanceof DartIdentifier) {
-      String name = ((DartIdentifier) node).getName();
-      addFix_importLibrary_withElement(name);
-    }
-  }
-
-  private void addFix_importLibrary_withFunction(IProblemLocation location) throws Exception {
-    if (node instanceof DartIdentifier
-        && getLocationInParent(node) == DART_METHOD_INVOCATION_TARGET) {
-      String name = ((DartIdentifier) node).getName();
-      addFix_importLibrary_withElement(name);
-    }
-  }
-
-  private void addFix_importLibrary_withType(IProblemLocation location) throws Exception {
-    if (mayBeTypeIdentifier(node)) {
-      String typeName = ((DartIdentifier) node).getName();
-      addFix_importLibrary_withElement(typeName);
+      // if we have close enough element, suggest to use it
+      if (finder != null && finder.distance < 5) {
+        closestName = finder.element.getName();
+        addReplaceEdit(SourceRangeFactory.create(node), closestName);
+      }
+      // add proposal
+      if (closestName != null) {
+        proposalRelevance += 1;
+        addUnitCorrectionProposal(
+            Messages.format(CorrectionMessages.QuickFixProcessor_changeTo, closestName),
+            DartPluginImages.get(DartPluginImages.IMG_CORRECTION_CHANGE));
+      }
     }
   }