Support KClass.defaultType

compiler/testData/codegen/boxWithStdlib/reflection/classes/defaultType.kt

@@ -0,0 +1,25 @@
+import kotlin.reflect.defaultType
+import kotlin.reflect.jvm.javaType
+import kotlin.test.assertEquals
+import kotlin.test.assertNotEquals
+
+class Simple
+class Generic<K, V> {
+    fun thiz() = this
+}
+
+fun simple() = Simple()
+fun genericIntString() = Generic<Int, String>()
+
+fun box(): String {
+    assertEquals(javaClass<Simple>(), Simple::class.defaultType.javaType)
+    assertEquals(::simple.returnType, Simple::class.defaultType)
+
+    assertEquals(javaClass<Generic<*, *>>(), Generic::class.defaultType.javaType)
+    assertEquals(Generic<*, *>::thiz.returnType, Generic::class.defaultType)
+
+    // Generic<Int, String> != Generic<K, V>
+    assertNotEquals(::genericIntString.returnType, Generic::class.defaultType)
+
+    return "OK"
+}