Support 'expect final' -> 'actual open' for callables

#KT-17944

compiler/testData/diagnostics/tests/multiplatform/headerClass/expectFinalActualOpen.kt

@@ -0,0 +1,27 @@
+// !LANGUAGE: +MultiPlatformProjects
+// MODULE: m1-common
+// FILE: common.kt
+
+expect class Foo {
+    fun f()
+    val v: String
+}
+
+expect class Bar {
+    fun g()
+}
+
+// MODULE: m2-jvm(m1-common)
+// FILE: jvm.kt
+
+actual open class Foo(actual open val v: String) {
+    actual open fun f() {}
+}
+
+actual typealias Bar = JavaBar
+
+// FILE: JavaBar.java
+
+public class JavaBar {
+    public void g() {}
+}

compiler/testData/diagnostics/tests/multiplatform/headerClass/expectFinalActualOpen.txt

@@ -0,0 +1,39 @@
+// -- Module: <m1-common> --
+package
+
+public final expect class Bar {
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public final expect fun g(): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final expect class Foo {
+    public expect final val v: kotlin.String
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public final expect fun f(): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+
+// -- Module: <m2-jvm> --
+package
+
+public open actual class Foo {
+    public constructor Foo(/*0*/ v: kotlin.String)
+    public actual open val v: kotlin.String
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open actual fun f(): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public open class JavaBar {
+    public constructor JavaBar()
+    public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open fun g(): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+public typealias Bar = JavaBar

compiler/testData/diagnostics/tests/multiplatform/headerClass/modalityCheckForExplicitAndImplicitOverride.kt

@@ -23,13 +23,13 @@ open class Open {
 }
 
 actual open class Foo1 : Open() {
-    override val <!ACTUAL_WITHOUT_EXPECT!>x<!> = super.x
+    override val <!ACTUAL_MISSING!>x<!> = super.x
 }
 
-actual open class <!NO_ACTUAL_CLASS_MEMBER_FOR_EXPECTED_CLASS!>Foo2<!> : Open()
+actual open class Foo2 : Open()
 
 open class WithFinal {
     val x = "42"
 }
 
-actual open class Foo3 : WithFinal()
+actual open class Foo3 : WithFinal()