Minor: kt21014.kt - add JVM_TARGET 1.8

compiler/testData/codegen/box/callableReference/kt21014.kt

@@ -0,0 +1,21 @@
+// WITH_RUNTIME
+// IGNORE_BACKEND: JVM
+// IGNORE_LIGHT_ANALYSIS
+// DONT_TARGET_EXACT_BACKEND: WASM
+// WASM_MUTE_REASON: PROPERTY_REFERENCES
+
+// JVM_TARGET: 1.8
+// ^ This test causes SIGSEGV on JDK 1.6 with old back-end.
+//   Running it on JDK 1.6 (even with IGNORE_BACKEND: JVM) would still crash corresponding JVM process.
+
+fun box(): String {
+    val ints = intArrayOf(1, 2, 3)
+
+    val test1 = IntArray::size.get(ints)
+    if (test1 != 3) throw Exception("IntArray::size.get(ints) != 3: $test1")
+
+    val test2 = with(ints, IntArray::size)
+    if (test2 != 3) throw Exception("with(ints, IntArray::size) != 3: $test2")
+
+    return "OK"
+}