val result = compile(mainFile, compilerConfiguration, target, allowedErrorFilter)

            val actualText = when (result) {
                is KaCompilationResult.Failure -> result.errors.joinToString("\n") { dumpDiagnostic(it) }
                is KaCompilationResult.Success -> dumpClassFiles(result.output)
            }

            testServices.assertions.assertEqualsToTestDataFileSibling(actualText)