Fixed a fail in import insertion

idea/src/org/jetbrains/kotlin/idea/util/ImportInsertHelperImpl.kt

@@ -368,7 +368,7 @@ public class ImportInsertHelperImpl(private val project: Project) : ImportInsert
             return result
         }
 
-        private fun JetImportDirective.getImportedName(): String? = JetPsiUtil.getAliasName(this)?.getIdentifier()
+        private fun JetImportDirective.getImportedName(): String? = if (isAllUnder()) null else JetPsiUtil.getAliasName(this)?.getIdentifier()
 
         private fun targetFqName(ref: JetReferenceExpression): FqName? {
             return ref.resolveTargets().map { it.importableFqName }.toSet().singleOrNull()

idea/testData/addImport/ImportFunctionBug.dependency.kt

@@ -0,0 +1,3 @@
+package dependency
+
+fun String.util(){}

idea/testData/addImport/ImportFunctionBug.kt

@@ -0,0 +1,6 @@
+// IMPORT: dependency.util
+import java.util.*
+
+fun foo() {
+    "".util()
+}

idea/testData/addImport/ImportFunctionBug.kt.after

@@ -0,0 +1,7 @@
+// IMPORT: dependency.util
+import dependency.*
+import java.util.*
+
+fun foo() {
+    "".util()
+}

idea/tests/org/jetbrains/kotlin/addImport/AddImportTestGenerated.java

@@ -180,6 +180,12 @@ public class AddImportTestGenerated extends AbstractAddImportTest {
         doTest(fileName);
     }
 
+    @TestMetadata("ImportFunctionBug.kt")
+    public void testImportFunctionBug() throws Exception {
+        String fileName = JetTestUtils.navigationMetadata("idea/testData/addImport/ImportFunctionBug.kt");
+        doTest(fileName);
+    }
+
     @TestMetadata("ImportPackage.kt")
     public void testImportPackage() throws Exception {
         String fileName = JetTestUtils.navigationMetadata("idea/testData/addImport/ImportPackage.kt");