Remove useless Intrinsic interface

Moved all its methods inside sealed class

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/interpreter/intrinsics/Intrinsic.kt

@@ -1,16 +0,0 @@
-/*
- * 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.intrinsics
-
-import org.jetbrains.kotlin.backend.common.interpreter.ExecutionResult
-import org.jetbrains.kotlin.backend.common.interpreter.stack.Stack
-import org.jetbrains.kotlin.ir.IrElement
-import org.jetbrains.kotlin.ir.declarations.IrFunction
-
-interface Intrinsic {
-    fun equalTo(irFunction: IrFunction): Boolean
-    suspend fun evaluate(irFunction: IrFunction, stack: Stack, interpret: suspend IrElement.() -> ExecutionResult): ExecutionResult
-}

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/interpreter/intrinsics/IntrinsicImplementations.kt

@@ -17,7 +17,10 @@ import org.jetbrains.kotlin.ir.declarations.IrFunction
 import org.jetbrains.kotlin.ir.types.classOrNull
 import org.jetbrains.kotlin.ir.util.*
 
-sealed class IntrinsicBase : Intrinsic
+sealed class IntrinsicBase {
+    abstract fun equalTo(irFunction: IrFunction): Boolean
+    abstract suspend fun evaluate(irFunction: IrFunction, stack: Stack, interpret: suspend IrElement.() -> ExecutionResult): ExecutionResult
+}
 
 object EmptyArray : IntrinsicBase() {
     override fun equalTo(irFunction: IrFunction): Boolean {