[Test] Extract main compiler test generator to separate project

This is needed because now we have different tests modules with different
  test frameworks (JUnit3 and JUnit5) which has no dependencies between
  each other. So for keeping all test generation config in one place
  we need module which may rely on all independent test modules

compiler/tests-common-new/build.gradle.kts

@@ -17,9 +17,9 @@ dependencies {
 
     testImplementation(projectTests(":generators:test-generator"))
 
-    testImplementation(platform("org.junit:junit-bom:5.7.0"))
-    testImplementation("org.junit.jupiter:junit-jupiter")
-    testImplementation("org.junit.platform:junit-platform-commons:1.7.0")
+    testApi(platform("org.junit:junit-bom:5.7.0"))
+    testApi("org.junit.jupiter:junit-jupiter")
+    testApi("org.junit.platform:junit-platform-commons:1.7.0")
     testApi(projectTests(":compiler:test-infrastructure"))
     testImplementation(projectTests(":compiler:test-infrastructure-utils"))
     testImplementation(projectTests(":compiler:tests-compiler-utils"))
@@ -88,5 +88,3 @@ projectTest(parallel = true, jUnit5Enabled = true) {
 }
 
 testsJar()
-
-val generateTests by generator("org.jetbrains.kotlin.test.generators.GenerateNewCompilerTestsKt")

compiler/tests-common-new/tests/org/jetbrains/kotlin/test/generators/GenerateNewCompilerTests.kt

@@ -1,61 +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.test.generators
-
-import org.jetbrains.kotlin.generators.util.TestGeneratorUtil.KT_WITHOUT_DOTS_IN_NAME
-import org.jetbrains.kotlin.test.TargetBackend
-import org.jetbrains.kotlin.test.runners.*
-
-fun main(args: Array<String>) {
-    val excludedFirTestdataPattern = "^(.+)\\.fir\\.kts?\$"
-
-    generateNewTestGroupSuite(args) {
-        testGroup("compiler/tests-common-new/tests-gen", "compiler/testData") {
-            testClass<AbstractDiagnosticTest> {
-                model("diagnostics/tests", pattern = "^(.*)\\.kts?$", excludedPattern = excludedFirTestdataPattern)
-                model("diagnostics/testsWithStdLib", excludedPattern = excludedFirTestdataPattern)
-            }
-
-            testClass<AbstractDiagnosticUsingJavacTest> {
-                model("diagnostics/tests/javac", pattern = "^(.*)\\.kts?$", excludedPattern = excludedFirTestdataPattern)
-            }
-
-            testClass<AbstractFirDiagnosticTest>(suiteTestClassName = "FirOldFrontendDiagnosticsTestGenerated") {
-                model("diagnostics/tests", excludedPattern = excludedFirTestdataPattern)
-                model("diagnostics/testsWithStdLib", excludedPattern = excludedFirTestdataPattern)
-            }
-
-            testClass<AbstractDiagnosticsTestWithJsStdLib> {
-                model("diagnostics/testsWithJsStdLib")
-            }
-
-            testClass<AbstractDiagnosticsTestWithOldJvmBackend> {
-                model("diagnostics/testsWithJvmBackend", targetBackend = TargetBackend.JVM_OLD)
-            }
-
-            testClass<AbstractDiagnosticsTestWithJvmIrBackend> {
-                model("diagnostics/testsWithJvmBackend", targetBackend = TargetBackend.JVM_IR)
-            }
-
-            testClass<AbstractDiagnosticsNativeTest> {
-                model("diagnostics/nativeTests")
-            }
-        }
-
-        testGroup("compiler/tests-common-new/tests-gen", "compiler/fir/analysis-tests/testData") {
-            testClass<AbstractFirDiagnosticTest> {
-                model("resolve", pattern = KT_WITHOUT_DOTS_IN_NAME)
-                model("resolveWithStdlib", pattern = KT_WITHOUT_DOTS_IN_NAME)
-            }
-
-            testClass<AbstractFirDiagnosticsWithLightTreeTest> {
-                model("resolve", pattern = KT_WITHOUT_DOTS_IN_NAME)
-            }
-        }
-    }
-}
-
-const val TEST_GENERATOR_NAME = "GenerateNewCompilerTests.kt"

compiler/tests-common-new/tests/org/jetbrains/kotlin/test/generators/NewTestGenerationDSL.kt

@@ -9,14 +9,14 @@ import org.jetbrains.kotlin.generators.InconsistencyChecker
 import org.jetbrains.kotlin.generators.TestGroupSuite
 import org.jetbrains.kotlin.generators.testGroupSuite
 
-fun generateNewTestGroupSuite(
+fun generateTestGroupSuiteWithJUnit5(
     args: Array<String>,
     init: TestGroupSuite.() -> Unit
 ) {
-    generateNewTestGroupSuite(InconsistencyChecker.hasDryRunArg(args), init)
+    generateTestGroupSuiteWithJUnit5(InconsistencyChecker.hasDryRunArg(args), init)
 }
 
-fun generateNewTestGroupSuite(
+fun generateTestGroupSuiteWithJUnit5(
     dryRun: Boolean = false,
     init: TestGroupSuite.() -> Unit
 ) {

compiler/tests-common-new/tests/org/jetbrains/kotlin/test/generators/NewTestGeneratorImpl.kt

@@ -22,6 +22,8 @@ import java.io.File
 import java.io.IOException
 import java.util.*
 
+private const val TEST_GENERATOR_NAME = "GenerateNewCompilerTests.kt"
+
 private val METHOD_GENERATORS = listOf(
     SimpleTestClassModelTestAllFilesPresentMethodGenerator,
     SimpleTestMethodGenerator,