Support class reference expression for reified type parameters

Also make KClass::java an intrinsic property.

Based on the work by @dnpetrov

 #KT-6976 Fixed

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

@@ -0,0 +1,29 @@
+import kotlin.test.*
+import kotlin.reflect.jvm.java
+
+class Klass
+class Other
+
+inline fun <reified T> simpleName(): String =
+        T::class.simpleName!!
+
+inline fun <reified T1, reified T2> twoReifiedParams(): String =
+        "${T1::class.simpleName!!}, ${T2::class.simpleName!!}"
+
+inline fun <reified T> myJavaClass(): Class<T> =
+        T::class.java
+
+fun box(): String {
+    assertEquals("Klass", simpleName<Klass>())
+    assertEquals("Int", simpleName<Int>())
+    assertEquals("Array", simpleName<Array<Int>>())
+    assertEquals("Error", simpleName<Error>())
+    assertEquals("Klass, Other", twoReifiedParams<Klass, Other>())
+
+    assertEquals(javaClass<String>(), myJavaClass<String>())
+    assertEquals(javaClass<IntArray>(), myJavaClass<IntArray>())
+    assertEquals(javaClass<Klass>(), myJavaClass<Klass>())
+    assertEquals(javaClass<Error>(), myJavaClass<Error>())
+
+    return "OK"
+}

compiler/testData/codegen/bytecodeText/javaExtensionPropertyIntrinsic.kt

@@ -0,0 +1,16 @@
+import kotlin.reflect.jvm.java
+
+class Klass
+
+fun foo() {
+    val c0 = (Klass::class).java // prevent intrinsic .java for class literal
+    val c1 = Klass::class.java
+    val c2 = Int::class.java
+    val c3 = Integer::class.java
+
+}
+
+// 2 LDC LKlass;.class
+// 1 GETSTATIC java/lang/Integer.TYPE : Ljava/lang/Class;
+// 1 INVOKESTATIC kotlin/reflect/jvm.*\.getJava
+// 1 LDC Ljava/lang/Integer;.class