Fix KNPE from "Create" quick fix

#KT-27289 Fixed

idea/src/org/jetbrains/kotlin/idea/quickfix/createFromUsage/createClass/CreateClassFromUsageFix.kt

@@ -122,14 +122,15 @@ open class CreateClassFromUsageFix<E : KtElement> protected constructor(
                     }
                 }
             }
-            if (classInfo.kind != ClassKind.ENUM_ENTRY) {
+
+            if (classInfo.kind != ClassKind.ENUM_ENTRY && parents.find { it is PsiPackage } == null) {
                 parents += SeparateFileWrapper(PsiManager.getInstance(project))
             }
         }
 
         if (ApplicationManager.getApplication().isUnitTestMode) {
             val targetParent = applicableParents.firstOrNull { element ->
-                element.allChildren.any { it is PsiComment && it.text == "// TARGET_PARENT:" }
+                if (element is PsiPackage) false else element.allChildren.any { it is PsiComment && it.text == "// TARGET_PARENT:" }
             } ?: classInfo.applicableParents.last()
             return doInvoke(targetParent, editor, file)
         }

idea/src/org/jetbrains/kotlin/idea/refactoring/kotlinRefactoringUtil.kt

@@ -38,6 +38,7 @@ import com.intellij.openapi.util.text.StringUtil
 import com.intellij.openapi.vfs.LocalFileSystem
 import com.intellij.openapi.vfs.VirtualFile
 import com.intellij.psi.*
+import com.intellij.psi.impl.file.PsiPackageBase
 import com.intellij.psi.impl.light.LightElement
 import com.intellij.psi.presentation.java.SymbolPresentationUtil
 import com.intellij.psi.util.PsiTreeUtil
@@ -406,9 +407,13 @@ fun <T> chooseContainerElement(
                 return "$name$params"
             }
 
-            private fun PsiElement.renderText(): String {
-                if (this is SeparateFileWrapper) return "Extract to separate file"
-                return StringUtil.shortenTextWithEllipsis(text!!.collapseSpaces(), 53, 0)
+            private fun PsiElement.renderText(): String = when (this) {
+                is SeparateFileWrapper -> "Extract to separate file"
+                is PsiPackageBase -> qualifiedName
+                else -> {
+                    val text = text ?: "<invalid text>"
+                    StringUtil.shortenTextWithEllipsis(text.collapseSpaces(), 53, 0)
+                }
             }
 
             private fun PsiElement.getRepresentativeElement(): PsiElement = when (this) {

idea/testData/multiModuleQuickFix/createClassFromUsageImport/header/a/b/B1.kt

@@ -0,0 +1 @@
+package a.b

idea/testData/multiModuleQuickFix/createClassFromUsageImport/header/a/b/ClassG.after

@@ -0,0 +1,5 @@
+package a.b
+
+class ClassG {
+
+}

idea/testData/multiModuleQuickFix/createClassFromUsageImport/header/a/common.after

@@ -0,0 +1,5 @@
+// "Create class 'ClassG'" "true"
+
+package a
+
+import a.b.ClassG<caret>

idea/testData/multiModuleQuickFix/createClassFromUsageImport/header/a/common.kt

@@ -0,0 +1,6 @@
+// "Create class 'ClassG'" "true"
+// ERROR: Unresolved reference: ClassG
+
+package a
+
+import a.b.ClassG<caret>

idea/testData/multiModuleQuickFix/createClassFromUsageRef/header/a/b/B1.kt

@@ -0,0 +1 @@
+package a.b

idea/testData/multiModuleQuickFix/createClassFromUsageRef/header/a/b/ClassG.after

@@ -0,0 +1,5 @@
+package a.b
+
+class ClassG {
+
+}

idea/testData/multiModuleQuickFix/createClassFromUsageRef/header/a/common.after

@@ -0,0 +1,9 @@
+// "Create class 'ClassG'" "true"
+
+package a
+
+import a.b.ClassG
+
+fun test() {
+    ClassG()
+}

idea/testData/multiModuleQuickFix/createClassFromUsageRef/header/a/common.kt

@@ -0,0 +1,8 @@
+// "Create class 'ClassG'" "true"
+// ERROR: Unresolved reference: ClassG
+
+package a
+
+fun test() {
+    a.b.ClassG<caret>()
+}

idea/tests/org/jetbrains/kotlin/idea/quickfix/QuickFixMultiModuleTestGenerated.java

@@ -199,6 +199,16 @@ public class QuickFixMultiModuleTestGenerated extends AbstractQuickFixMultiModul
         runTest("idea/testData/multiModuleQuickFix/convertPropertyGetterToInitializer/");
     }
 
+    @TestMetadata("createClassFromUsageImport")
+    public void testCreateClassFromUsageImport() throws Exception {
+        runTest("idea/testData/multiModuleQuickFix/createClassFromUsageImport/");
+    }
+
+    @TestMetadata("createClassFromUsageRef")
+    public void testCreateClassFromUsageRef() throws Exception {
+        runTest("idea/testData/multiModuleQuickFix/createClassFromUsageRef/");
+    }
+
     @TestMetadata("createFunInExpectClass")
     public void testCreateFunInExpectClass() throws Exception {
         runTest("idea/testData/multiModuleQuickFix/createFunInExpectClass/");