[Native][tests] Extract Clang invocation to a separate function

native/native.tests/tests/org/jetbrains/kotlin/konan/test/blackbox/ObjCToKotlinSteppingInLLDBTest.kt

@@ -20,6 +20,7 @@ import org.jetbrains.kotlin.konan.test.blackbox.support.settings.PipelineType
 import org.jetbrains.kotlin.konan.test.blackbox.support.settings.Timeouts
 import org.jetbrains.kotlin.konan.test.blackbox.support.settings.configurables
 import org.jetbrains.kotlin.konan.test.blackbox.support.util.LLDBSessionSpec
+import org.jetbrains.kotlin.konan.test.blackbox.support.util.compileWithClang
 import org.junit.jupiter.api.Assumptions
 import org.junit.jupiter.api.Test
 import java.io.File
@@ -222,22 +223,11 @@ class ObjCToKotlinSteppingInLLDBTest : AbstractNativeSimpleTest() {
         val clangExecutableName = "clangMain"
         val executableFile = File(buildDir, clangExecutableName)
 
-        // FIXME: absoluteTargetToolchain might not work correctly with KONAN_USE_INTERNAL_SERVER because
+        compileWithClang(
-        // :kotlin-native:dependencies:update is not a dependency of :native:native.tests:test where this test runs
+            sourceFiles = listOf(clangFile),
-        val process = ProcessBuilder(
+            outputFile = executableFile,
-            "${testRunSettings.configurables.absoluteTargetToolchain}/bin/clang",
+            frameworkDirectories = listOf(buildDir),
-            clangFile.absolutePath,
+        )
-            "-isysroot", testRunSettings.configurables.absoluteTargetSysRoot,
-            "-target", testRunSettings.configurables.targetTriple.toString(),
-            "-g", "-fmodules",
-            "-F", buildDir.absolutePath,
-            "-o", executableFile.absolutePath
-        ).redirectErrorStream(true).start()
-        val clangOutput = process.inputStream.readBytes()
-
-        check(
-            process.waitFor() == 0
-        ) { clangOutput.decodeToString() }
 
         // 4. Generate the test case
         val testExecutable = TestExecutable(

native/native.tests/tests/org/jetbrains/kotlin/konan/test/blackbox/support/util/Clang.kt

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2010-2023 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.konan.test.blackbox.support.util
+
+import org.jetbrains.kotlin.konan.test.blackbox.AbstractNativeSimpleTest
+import org.jetbrains.kotlin.konan.test.blackbox.support.settings.configurables
+import java.io.File
+
+// FIXME: absoluteTargetToolchain might not work correctly with KONAN_USE_INTERNAL_SERVER because
+// :kotlin-native:dependencies:update is not a dependency of :native:native.tests:test where this test runs
+internal fun AbstractNativeSimpleTest.compileWithClang(
+    sourceFiles: List<File>,
+    outputFile: File,
+    frameworkDirectories: List<File>
+) {
+    val process = ProcessBuilder(
+        "${testRunSettings.configurables.absoluteTargetToolchain}/bin/clang",
+        *sourceFiles.map { it.absolutePath }.toTypedArray(),
+        "-isysroot", testRunSettings.configurables.absoluteTargetSysRoot,
+        "-target", testRunSettings.configurables.targetTriple.toString(),
+        "-g", "-fmodules",
+        *frameworkDirectories.flatMap { listOf("-F", it.absolutePath) }.toTypedArray(),
+        "-o", outputFile.absolutePath
+    ).redirectErrorStream(true).start()
+    val clangOutput = process.inputStream.readBytes()
+
+    check(
+        process.waitFor() == 0
+    ) { clangOutput.decodeToString() }
+}