[FE] Check visibilities of expected and actual property setters are compatible

^KT-30905 Fixed

compiler/testData/diagnostics/tests/multiplatform/varSetterVisibility.fir.kt

@@ -0,0 +1,39 @@
+// MODULE: m1-common
+// FILE: common.kt
+expect var v1: Boolean
+
+expect var v2: Boolean
+    internal set
+
+expect var v3: Boolean
+    internal set
+
+expect open class C {
+    var foo: Boolean
+}
+
+expect open class C2 {
+    var foo: Boolean
+}
+
+// MODULE: m1-jvm()()(m1-common)
+// FILE: jvm.kt
+<!ACTUAL_WITHOUT_EXPECT!>actual var v1: Boolean = false
+    private set<!>
+
+actual var v2: Boolean = false
+
+<!ACTUAL_WITHOUT_EXPECT!>actual var v3: Boolean = false
+    private set<!>
+
+actual open class C {
+    <!ACTUAL_WITHOUT_EXPECT!>actual var foo: Boolean = false
+        protected set<!>
+}
+
+open class C2Typealias {
+    var foo: Boolean = false
+        protected set
+}
+
+actual typealias <!NO_ACTUAL_CLASS_MEMBER_FOR_EXPECTED_CLASS!>C2<!> = C2Typealias

compiler/testData/diagnostics/tests/multiplatform/varSetterVisibility.kt

@@ -0,0 +1,39 @@
+// MODULE: m1-common
+// FILE: common.kt
+expect var v1: Boolean
+
+expect var v2: Boolean
+    internal set
+
+expect var v3: Boolean
+    internal set
+
+expect open class C {
+    var foo: Boolean
+}
+
+expect open class C2 {
+    var foo: Boolean
+}
+
+// MODULE: m1-jvm()()(m1-common)
+// FILE: jvm.kt
+actual var v1: Boolean = false
+    <!ACTUAL_WITHOUT_EXPECT!>private<!> set
+
+actual var v2: Boolean = false
+
+actual var v3: Boolean = false
+    <!ACTUAL_WITHOUT_EXPECT!>private<!> set
+
+actual open class C {
+    actual var foo: Boolean = false
+        <!ACTUAL_WITHOUT_EXPECT!>protected<!> set
+}
+
+open class C2Typealias {
+    var foo: Boolean = false
+        protected set
+}
+
+actual typealias <!NO_ACTUAL_CLASS_MEMBER_FOR_EXPECTED_CLASS!>C2<!> = C2Typealias