[FIR] 2/2 Support more wider actual member visibility, if the expect member is effectively final

^KT-61955 Fixed

Introduce LV vs don't introduce LV:

introduce LV:
- K1 IDE and K2 project: IDE accurately shows compiler errors
- K2 IDE and K1 project: There are cases when IDE shows red but in reality it's green

don't introduce LV:
- K1 IDE and K2 project: There are cases when IDE shows red but in reality it's green
- K2 IDE and K1 project: There are cases when IDE shows green but in reality it's red

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

@@ -0,0 +1,17 @@
+// MODULE: m1-common
+// FILE: common.kt
+
+open class Base {
+    internal open fun foo() {}
+}
+expect class Foo : Base {
+    override fun foo()
+}
+
+// MODULE: m2-jvm()()(m1-common)
+// FILE: jvm.kt
+
+actual class Foo : Base() {
+    public actual override fun foo() {
+    }
+}

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

@@ -0,0 +1,17 @@
+// MODULE: m1-common
+// FILE: common.kt
+
+open class Base {
+    internal open fun foo() {}
+}
+expect class Foo : Base {
+    override fun foo()
+}
+
+// MODULE: m2-jvm()()(m1-common)
+// FILE: jvm.kt
+
+actual class Foo : Base() {
+    <!ACTUAL_WITHOUT_EXPECT!>public<!> actual override fun foo() {
+    }
+}

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

@@ -0,0 +1,16 @@
+// FIR_IDENTICAL
+// MODULE: m1-common
+// FILE: common.kt
+
+open class Base {
+    protected open fun foo() {}
+}
+expect class Foo : Base
+
+// MODULE: m2-jvm()()(m1-common)
+// FILE: jvm.kt
+
+actual class Foo : Base() {
+    public override fun foo() {
+    }
+}

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

@@ -0,0 +1,18 @@
+// LANGUAGE: -SupportEffectivelyFinalInExpectActualVisibilityCheck
+// MODULE: m1-common
+// FILE: common.kt
+
+open class Base {
+    internal open fun foo() {}
+}
+<!EXPECT_ACTUAL_INCOMPATIBILITY{JVM}!>expect class Foo : Base {
+    <!EXPECT_ACTUAL_INCOMPATIBILITY{JVM}!>override fun foo()<!>
+}<!>
+
+// MODULE: m2-jvm()()(m1-common)
+// FILE: jvm.kt
+
+actual class Foo : Base() {
+    public actual override fun <!ACTUAL_WITHOUT_EXPECT!>foo<!>() {
+    }
+}

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

@@ -0,0 +1,18 @@
+// LANGUAGE: -SupportEffectivelyFinalInExpectActualVisibilityCheck
+// MODULE: m1-common
+// FILE: common.kt
+
+open class Base {
+    internal open fun foo() {}
+}
+expect class Foo : Base {
+    override fun foo()
+}
+
+// MODULE: m2-jvm()()(m1-common)
+// FILE: jvm.kt
+
+actual class Foo : Base() {
+    <!ACTUAL_WITHOUT_EXPECT!>public<!> actual override fun foo() {
+    }
+}

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

@@ -0,0 +1,19 @@
+// MODULE: m1-common
+// FILE: common.kt
+
+open class Base {
+    open var foo: Int = 2
+        internal set
+}
+expect class Foo : Base {
+    override var foo: Int
+        internal set
+}
+
+// MODULE: m2-jvm()()(m1-common)
+// FILE: jvm.kt
+
+actual class Foo : Base() {
+    actual override var foo: Int = 2
+        public set
+}

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

@@ -0,0 +1,19 @@
+// MODULE: m1-common
+// FILE: common.kt
+
+open class Base {
+    open var foo: Int = 2
+        internal set
+}
+expect class Foo : Base {
+    override var foo: Int
+        internal set
+}
+
+// MODULE: m2-jvm()()(m1-common)
+// FILE: jvm.kt
+
+actual class Foo : Base() {
+    actual override var foo: Int = 2
+        <!ACTUAL_WITHOUT_EXPECT!>public<!> set
+}

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

@@ -0,0 +1,17 @@
+// FIR_IDENTICAL
+// MODULE: m1-common
+// FILE: common.kt
+
+open class Base {
+    open var foo: Int = 2
+        protected set
+}
+expect class Foo : Base
+
+// MODULE: m2-jvm()()(m1-common)
+// FILE: jvm.kt
+
+actual class Foo : Base() {
+    override var foo: Int = 2
+        public set
+}