[IR] Drop ir.ir2cfg module

#KTI-952 Fixed
#KT-65773 Related

compiler/tests-common/tests/org/jetbrains/kotlin/ir/AbstractIrCfgTestCase.kt

@@ -1,61 +0,0 @@
-/*
- * Copyright 2010-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.jetbrains.kotlin.ir
-
-import org.jetbrains.kotlin.ir.declarations.IrFile
-import org.jetbrains.kotlin.ir.declarations.IrFunction
-import org.jetbrains.kotlin.ir.declarations.IrModuleFragment
-import org.jetbrains.kotlin.ir.declarations.path
-import org.jetbrains.kotlin.ir2cfg.generators.FunctionGenerator
-import org.jetbrains.kotlin.ir2cfg.util.dump
-import org.jetbrains.kotlin.test.KotlinTestUtils
-import java.io.File
-
-abstract class AbstractIrCfgTestCase : AbstractIrGeneratorTestCase() {
-
-    private fun IrFile.cfgDump(): String {
-        val builder = StringBuilder()
-        for (declaration in this.declarations) {
-            if (declaration is IrFunction) {
-                builder.appendLine("// FUN: ${declaration.name}")
-                val cfg = FunctionGenerator(declaration).generate()
-                builder.appendLine(cfg.dump())
-                builder.appendLine("// END FUN: ${declaration.name}")
-            }
-        }
-        return builder.toString()
-    }
-
-    private fun IrModuleFragment.cfgDump(): String {
-        val builder = StringBuilder()
-        for (file in this.files) {
-            builder.appendLine("// FILE: ${file.path}")
-            builder.appendLine(file.cfgDump())
-            builder.appendLine("// END FILE: ${file.path}")
-            builder.appendLine()
-        }
-        return builder.toString()
-    }
-
-    override fun doTest(wholeFile: File, testFiles: List<TestFile>) {
-        val irModule = generateIrModule(false)
-        val irModuleDump = irModule.cfgDump()
-        val expectedPath = wholeFile.canonicalPath.replace(".kt", ".txt")
-        val expectedFile = File(expectedPath)
-        KotlinTestUtils.assertEqualsToFile(expectedFile, irModuleDump)
-    }
-}