Tests for Sealed Class move + Fix invalid move declaration test

MoveDeclarationToSeparateFile.testSealed test was threated to check that the intention is not applicable but it currently is.

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/moveSealedClassWithImplsToAnotherPackage/after/bar/SealedClass.kt

@@ -0,0 +1,5 @@
+package bar
+
+public sealed class SealedClass {
+    public class Impl1 : SealedClass() {}
+}

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/moveSealedClassWithImplsToAnotherPackage/after/foo/KotlinReferences.kt

@@ -0,0 +1,5 @@
+package foo
+
+import bar.SealedClass
+
+val v = SealedClass::Impl1

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/moveSealedClassWithImplsToAnotherPackage/after/foo/SealedClass.kt

@@ -0,0 +1,5 @@
+package foo
+
+import bar.SealedClass
+
+public class Impl2 : SealedClass() {}

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/moveSealedClassWithImplsToAnotherPackage/before/foo/KotlinReferences.kt

@@ -0,0 +1,3 @@
+package foo
+
+val v = SealedClass::Impl1

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/moveSealedClassWithImplsToAnotherPackage/before/foo/SealedClass.kt

@@ -0,0 +1,7 @@
+package foo
+
+public sealed class <caret>SealedClass {
+    public class Impl1 : SealedClass() {}
+}
+
+public class Impl2 : SealedClass() {}

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/moveSealedClassWithImplsToAnotherPackage/conflicts.txt

@@ -0,0 +1 @@
+Sealed class 'SealedClass' must be moved with all its subclasses

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/moveSealedClassWithImplsToAnotherPackage/moveSealedClassWithNestedImplsToAnotherPackage.test

@@ -0,0 +1,5 @@
+{
+  "mainFile": "foo/SealedClass.kt",
+  "type": "MOVE_KOTLIN_TOP_LEVEL_DECLARATIONS",
+  "targetPackage": "bar"
+}

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/moveSealedClassWithNestedImplsToAnotherPackage/after/bar/SealedClass.kt

@@ -0,0 +1,6 @@
+package bar
+
+public sealed class SealedClass {
+    public class Impl1 : SealedClass() {}
+    public class Impl2 : SealedClass() {}
+}

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/moveSealedClassWithNestedImplsToAnotherPackage/after/foo/KotlinReferences.kt

@@ -0,0 +1,5 @@
+package foo
+
+import bar.SealedClass
+
+val v = SealedClass::Impl1

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/moveSealedClassWithNestedImplsToAnotherPackage/after/foo/SealedClass.kt

@@ -0,0 +1,2 @@
+package foo
+

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/moveSealedClassWithNestedImplsToAnotherPackage/before/foo/KotlinReferences.kt

@@ -0,0 +1,3 @@
+package foo
+
+val v = SealedClass::Impl1

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/moveSealedClassWithNestedImplsToAnotherPackage/before/foo/SealedClass.kt

@@ -0,0 +1,6 @@
+package foo
+
+public sealed class <caret>SealedClass {
+    public class Impl1 : SealedClass() {}
+    public class Impl2 : SealedClass() {}
+}

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/moveSealedClassWithNestedImplsToAnotherPackage/moveSealedClassWithNestedImplsToAnotherPackage.test

@@ -0,0 +1,5 @@
+{
+  "mainFile": "foo/SealedClass.kt",
+  "type": "MOVE_KOTLIN_TOP_LEVEL_DECLARATIONS",
+  "targetPackage": "bar"
+}