[mpp, tests] Add infrastructure for *Generated KPM Core tests

generators/test-generator/tests/org/jetbrains/kotlin/generators/NewTestGeneratorImpl.kt

@@ -30,7 +30,8 @@ private val METHOD_GENERATORS = listOf(
 )
 
 class NewTestGeneratorImpl(
-    additionalMethodGenerators: List<MethodGenerator<Nothing>>
+    additionalMethodGenerators: List<MethodGenerator<Nothing>>,
+    private val generatorName: String = TEST_GENERATOR_NAME,
 ) : TestGenerator(METHOD_GENERATORS + additionalMethodGenerators) {
 
     private val GENERATED_FILES = HashSet<String>()
@@ -155,7 +156,7 @@ class NewTestGeneratorImpl(
             p.println("import java.io.File;")
             p.println("import java.util.regex.Pattern;")
             p.println()
-            p.println("/** This class is generated by {@link ", TEST_GENERATOR_NAME, "}. DO NOT MODIFY MANUALLY */")
+            p.println("/** This class is generated by {@link ", generatorName, "}. DO NOT MODIFY MANUALLY */")
 
             p.generateSuppressAllWarnings()