Frontend: Allow using KClass as annotation parameter type

compiler/testData/diagnostics/testsWithStdLib/annotations/kClass/kClassInAnnotationsInVariance.kt

@@ -0,0 +1,27 @@
+import kotlin.reflect.KClass
+
+open class A
+class B1 : A()
+class B2 : A()
+
+annotation class Ann1(val arg: KClass<in A>)
+
+Ann1(A::class)
+class MyClass1
+
+Ann1(Any::class)
+class MyClass1a
+
+Ann1(<!TYPE_MISMATCH!>B1::class<!>)
+class MyClass2
+
+annotation class Ann2(val arg: KClass<in B1>)
+
+Ann2(A::class)
+class MyClass3
+
+Ann2(B1::class)
+class MyClass4
+
+Ann2(<!TYPE_MISMATCH!>B2::class<!>)
+class MyClass5