Move Variable data class to separate file

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/interpreter/stack/Frame.kt

@@ -8,19 +8,8 @@ package org.jetbrains.kotlin.backend.common.interpreter.stack
 import org.jetbrains.kotlin.backend.common.interpreter.equalTo
 import org.jetbrains.kotlin.backend.common.interpreter.state.State
 import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
-import org.jetbrains.kotlin.descriptors.ReceiverParameterDescriptor
 import kotlin.NoSuchElementException
 
-data class Variable(val descriptor: DeclarationDescriptor, val state: State) {
-    override fun toString(): String {
-        val descriptorName = when (descriptor) {
-            is ReceiverParameterDescriptor -> descriptor.containingDeclaration.name.toString() + "::this"
-            else -> descriptor.name
-        }
-        return "Variable(descriptor=$descriptorName, state=$state)"
-    }
-}
-
 interface Frame {
     fun addVar(variable: Variable)
     fun addAll(variables: List<Variable>)

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/interpreter/stack/Variable.kt

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.backend.common.interpreter.stack
+
+import org.jetbrains.kotlin.backend.common.interpreter.state.State
+import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
+import org.jetbrains.kotlin.descriptors.ReceiverParameterDescriptor
+
+data class Variable(val descriptor: DeclarationDescriptor, val state: State) {
+    override fun toString(): String {
+        val descriptorName = when (descriptor) {
+            is ReceiverParameterDescriptor -> descriptor.containingDeclaration.name.toString() + "::this"
+            else -> descriptor.name
+        }
+        return "Variable(descriptor=$descriptorName, state=$state)"
+    }
+}