Small fixes of import quickfix:

1. Change import popup title and import message;
2. Remove duplicates of top level and extension functions (in the case of overloaded functions) in import quickfix popup.

idea/src/org/jetbrains/jet/plugin/JetBundle.properties

@@ -27,6 +27,8 @@ replace.with.safe.call=Replace with safe call
 change.to.backing.field=Change reference to backing field
 implement.members=Implement members
 new.kotlin.file.action=Kotlin File
+import.fix=Import
+imports.chooser.title=Imports
 
 livetemplate.description.main=main() function
 livetemplate.description.soutp=Prints function parameter names and values to System.out

idea/src/org/jetbrains/jet/plugin/actions/JetAddImportAction.java

@@ -34,6 +34,7 @@ import com.intellij.util.PlatformIcons;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.jet.lang.psi.JetFile;
 import org.jetbrains.jet.lang.resolve.FqName;
+import org.jetbrains.jet.plugin.JetBundle;
 import org.jetbrains.jet.plugin.quickfix.ImportInsertHelper;
 
 import javax.swing.*;
@@ -91,7 +92,7 @@ public class JetAddImportAction implements QuestionAction {
     }
 
     protected BaseListPopupStep getImportSelectionPopup() {
-        return new BaseListPopupStep<FqName>(QuickFixBundle.message("class.to.import.chooser.title"), possibleImports) {
+        return new BaseListPopupStep<FqName>(JetBundle.message("imports.chooser.title"), possibleImports) {
             @Override
             public boolean isAutoSelectionEnabled() {
                 return false;

idea/src/org/jetbrains/jet/plugin/quickfix/ImportClassAndFunFix.java

@@ -21,7 +21,6 @@ import com.google.common.base.Predicate;
 import com.google.common.collect.Collections2;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Sets;
-import com.intellij.codeInsight.daemon.QuickFixBundle;
 import com.intellij.codeInsight.daemon.impl.ShowAutoImportPass;
 import com.intellij.codeInsight.hint.HintManager;
 import com.intellij.codeInsight.intention.HighPriorityAction;
@@ -48,6 +47,7 @@ import org.jetbrains.jet.lang.psi.JetSimpleNameExpression;
 import org.jetbrains.jet.lang.resolve.DescriptorUtils;
 import org.jetbrains.jet.lang.resolve.FqName;
 import org.jetbrains.jet.lang.resolve.ImportPath;
+import org.jetbrains.jet.plugin.JetBundle;
 import org.jetbrains.jet.plugin.JetFileType;
 import org.jetbrains.jet.plugin.actions.JetAddImportAction;
 import org.jetbrains.jet.plugin.caches.JetCacheManager;
@@ -105,13 +105,13 @@ public class ImportClassAndFunFix extends JetHintAction<JetSimpleNameExpression>
                 expression,
                 GlobalSearchScope.allScope(project));
 
-        return Collections2.transform(topLevelFunctions, new Function<DeclarationDescriptor, FqName>() {
+        return Sets.newHashSet(Collections2.transform(topLevelFunctions, new Function<DeclarationDescriptor, FqName>() {
             @Override
             public FqName apply(@Nullable DeclarationDescriptor declarationDescriptor) {
                 assert declarationDescriptor != null;
                 return DescriptorUtils.getFQName(declarationDescriptor).toSafe();
             }
-        });
+        }));
     }
 
     private static Collection<FqName> getJetExtensionFunctions(
@@ -130,19 +130,19 @@ public class ImportClassAndFunFix extends JetHintAction<JetSimpleNameExpression>
                 expression,
                 GlobalSearchScope.allScope(project));
 
-        return Collections2.transform(jetCallableExtensions, new Function<DeclarationDescriptor, FqName>() {
+        return Sets.newHashSet(Collections2.transform(jetCallableExtensions, new Function<DeclarationDescriptor, FqName>() {
             @Override
             public FqName apply(@Nullable DeclarationDescriptor declarationDescriptor) {
                 assert declarationDescriptor != null;
                 return DescriptorUtils.getFQName(declarationDescriptor).toSafe();
             }
-        });
+        }));
     }
 
     /*
      * Searches for possible class names in kotlin context and java facade.
      */
-    public static ArrayList<FqName> getClassNames(@NotNull String referenceName, @NotNull Project project) {
+    public static Collection<FqName> getClassNames(@NotNull String referenceName, @NotNull Project project) {
         final GlobalSearchScope scope = GlobalSearchScope.allScope(project);
         Set<FqName> possibleResolveNames = Sets.newHashSet();
         possibleResolveNames.addAll(JetCacheManager.getInstance(project).getNamesCache().getFQNamesByName(referenceName, scope));
@@ -202,13 +202,13 @@ public class ImportClassAndFunFix extends JetHintAction<JetSimpleNameExpression>
     @Override
     @NotNull
     public String getText() {
-        return QuickFixBundle.message("import.class.fix");
+        return JetBundle.message("import.fix");
     }
 
     @Override
     @NotNull
     public String getFamilyName() {
-        return QuickFixBundle.message("import.class.fix");
+        return JetBundle.message("import.fix");
     }
 
     @Override