K1: Implement a checker that disallows to have different member scopes for expect open and its actual

^KT-22841 Fixed
Review: https://jetbrains.team/p/kt/reviews/11603/timeline

The commit also introduces `@AllowDifferentMembersInActual` annotation in
stdlib which allows to suppress the diagnostic

libraries/stdlib/jvm/runtime/kotlin/text/TypeAliases.kt

@@ -7,6 +7,8 @@
 
 package kotlin.text
 
+@OptIn(ExperimentalMultiplatform::class)
+@AllowDifferentMembersInActual // New 'append' members are added compared to the expect declaration
 @SinceKotlin("1.1") public actual typealias Appendable = java.lang.Appendable
 
 @Suppress("ACTUAL_WITHOUT_EXPECT") // TODO: some supertypes are missing