Move: Fix name lengthening when moving from default package

#KT-10696 Fixed

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/misc/moveFromDefaultPackage/after/target/Extra.kt

@@ -0,0 +1,8 @@
+package target
+
+class Extra {
+    fun use() {
+        val v = Extra().Intro()
+    }
+    inner class Intro {}
+}

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/misc/moveFromDefaultPackage/after/test.kt

@@ -0,0 +1,3 @@
+class X {
+
+}

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/misc/moveFromDefaultPackage/before/test.kt

@@ -0,0 +1,10 @@
+class <caret>Extra {
+    fun use() {
+        val v = Extra().Intro()
+    }
+    inner class Intro {}
+}
+
+class X {
+
+}

idea/testData/refactoring/move/kotlin/moveTopLevelDeclarations/misc/moveFromDefaultPackage/moveFromDefaultPackage.test

@@ -0,0 +1,6 @@
+{
+  "mainFile": "test.kt",
+  "type": "MOVE_KOTLIN_TOP_LEVEL_DECLARATIONS",
+  "targetPackage": "target",
+  "withRuntime": "true"
+}