Support KClass.simpleName and built-in class literals

compiler/testData/codegen/boxWithStdlib/reflection/classLiterals/classSimpleName.kt

@@ -0,0 +1,14 @@
+class Klass
+
+fun box(): String {
+    val x = Klass::class
+    if (x.simpleName != "Klass") return "Fail x: ${x.simpleName}"
+
+    val y = java.util.Date::class
+    if (y.simpleName != "Date") return "Fail y: ${y.simpleName}"
+
+    val z = kotlin.jvm.internal.KotlinSyntheticClass.Kind::class
+    if (z.simpleName != "Kind") return "Fail z: ${z.simpleName}"
+
+    return "OK"
+}