Move stub building test generation to analysis generator

generators/analysis-api-generator/tests/org/jetbrains/kotlin/generators/tests/analysis/api/GenerateAnalysisApiTests.kt

@@ -18,4 +18,5 @@ fun main(args: Array<String>) {
 private fun TestGroupSuite.generateTests() {
     generateAnalysisApiTests()
     generateFirLowLevelApiTests()
+    generateDecompiledTests()
 }

generators/analysis-api-generator/tests/org/jetbrains/kotlin/generators/tests/analysis/api/decompiled.kt

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2010-2021 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.generators.tests.analysis.api
+
+import org.jetbrains.kotlin.analysis.decompiler.stub.files.AbstractClsStubBuilderTest
+import org.jetbrains.kotlin.generators.TestGroupSuite
+
+internal fun TestGroupSuite.generateDecompiledTests() {
+    testGroup(
+        "analysis/decompiled/decompiler-to-file-stubs/tests",
+        "analysis/decompiled/decompiler-to-file-stubs/testData",
+    ) {
+        testClass<AbstractClsStubBuilderTest> {
+            model("clsFileStubBuilder", extension = null, recursive = false)
+        }
+    }
+}