backend/tests: Add blackbox tests from Kotlin JVM

Added tests from testData/codegen/box directory. There are blackbox tests
in other directories and they are to be added.

backend.native/tests/external/codegen/blackbox/reflection/mapping/inlineReifiedFun.kt

@@ -0,0 +1,23 @@
+// IGNORE_BACKEND: JS
+// WITH_REFLECT
+
+import kotlin.reflect.*
+import kotlin.reflect.jvm.*
+import kotlin.test.assertEquals
+
+inline fun <reified T> f() = 1
+
+fun g() {}
+
+class Foo {
+    inline fun <reified T> h(t: T) = 1
+}
+
+fun box(): String {
+    assertEquals(::g, ::g.javaMethod!!.kotlinFunction)
+
+    val h = Foo::class.members.single { it.name == "h" } as KFunction<*>
+    assertEquals(h, h.javaMethod!!.kotlinFunction)
+
+    return "OK"
+}