[IR][tests] Make ABI compatibility tests less verbose, part 2

compiler/testData/klibABI/removeFunction/main/m.kt

@@ -1,39 +1,8 @@
-fun test1(): String {
-    return try {
-        qux(true)
-    } catch(e: Throwable) {
-        e.checkLinkageError("function exp_foo can not be called")
-    }
-}
-
-fun test2(): String = qux(false)
-
-fun test3(): String {
-    return try {
-        qux2(true)
-    } catch(e: Throwable) {
-        e.checkLinkageError("function exp_foo can not be called")
-    }
-}
-
-fun test4(): String = qux2(false)
-
-fun box() = checkResults(test1(), test2(), test3(), test4())
-
-private fun Throwable.checkLinkageError(prefix: String): String {
-    if (this::class.simpleName != "IrLinkageError") return "Unexpected throwable: ${this::class}"
-
-    val expectedMessagePrefix = "$prefix because it uses unlinked symbols"
-    val actualMessage = message.orEmpty()
-
-    return if (actualMessage.startsWith(expectedMessagePrefix))
-        "OK"
-    else
-        "EXPECTED: $expectedMessagePrefix, ACTUAL: $actualMessage"
-}
-
-private fun checkResults(vararg results: String): String = when {
-    results.isEmpty() -> "no results to check"
-    results.all { it == "OK" } -> "OK"
-    else -> results.joinToString("\n")
+import abitestutils.abiTest
+
+fun box() = abiTest {
+    expectFailure(prefixed("function exp_foo can not be called")) { qux(true) }
+    expectSuccess { qux(false) }
+    expectFailure(prefixed("function exp_foo can not be called")) { qux2(true) }
+    expectSuccess { qux2(false) }
 }