[FIR] Check conflicting overloads via scopes

Scopes may return private symbols from
supertypes, they should not clash with
symbols from the current class.

For example, see:
`FirLightTreeBlackBoxCodegenWithIrFakeOverrideGeneratorTestGenerated.FakeOverride#testPrivateFakeOverrides1`

Lombok shouldn't generate functions if the
user has defined explicit ones.

In K1 generated functions are not really
added to the declared members scope.

^KT-61243 Fixed

compiler/testData/diagnostics/tests/delegation/clashes/finalMemberOverridden.fir.kt

@@ -0,0 +1,55 @@
+open class Final {
+    fun foo() {}
+    val bar: Int = 0
+    var qux: Int = 0
+}
+
+open class Derived : Final()
+
+interface IFoo {
+    fun foo()
+}
+
+class CFoo : IFoo {
+    override fun foo() {}
+}
+
+interface IBar {
+    val bar: Int
+}
+
+class CBar : IBar {
+    override val bar: Int get() = 0
+}
+
+interface IQux {
+    val qux: Int
+}
+
+class CQux : IQux {
+    override val qux: Int get() = 0
+}
+
+interface IBarT<T> {
+    val bar: T
+}
+
+class CBarT<T> : IBarT<T> {
+    override val bar: T get() = null!!
+}
+
+<!OVERRIDING_FINAL_MEMBER_BY_DELEGATION!>class <!CONFLICTING_OVERLOADS, CONFLICTING_OVERLOADS!>Test1<!><!> : Final(), IFoo by CFoo()
+
+<!OVERRIDING_FINAL_MEMBER_BY_DELEGATION!>class <!REDECLARATION, REDECLARATION!>Test2<!><!> : Final(), IBar by CBar()
+
+<!OVERRIDING_FINAL_MEMBER_BY_DELEGATION, VAR_OVERRIDDEN_BY_VAL_BY_DELEGATION!>class <!REDECLARATION, REDECLARATION!>Test3<!><!> : Final(), IQux by CQux()
+
+<!OVERRIDING_FINAL_MEMBER_BY_DELEGATION!>class <!CONFLICTING_OVERLOADS, CONFLICTING_OVERLOADS!>Test4<!><!> : Derived(), IFoo by CFoo()
+
+<!OVERRIDING_FINAL_MEMBER_BY_DELEGATION!>class <!REDECLARATION, REDECLARATION!>Test5<!><!> : Derived(), IBar by CBar()
+
+<!OVERRIDING_FINAL_MEMBER_BY_DELEGATION, VAR_OVERRIDDEN_BY_VAL_BY_DELEGATION!>class <!REDECLARATION, REDECLARATION!>Test6<!><!> : Derived(), IQux by CQux()
+
+<!OVERRIDING_FINAL_MEMBER_BY_DELEGATION!>class <!REDECLARATION, REDECLARATION!>Test7<!><!> : Final(), IBarT<Int> by CBarT<Int>()
+
+<!OVERRIDING_FINAL_MEMBER_BY_DELEGATION!>class <!REDECLARATION, REDECLARATION!>Test8<!><!> : Final(), IBarT<Int> by <!TYPE_MISMATCH!>CBar()<!>

compiler/testData/diagnostics/tests/delegation/clashes/finalMemberOverridden.kt

@@ -1,4 +1,3 @@
-// FIR_IDENTICAL
 open class Final {
     fun foo() {}
     val bar: Int = 0

compiler/testData/diagnostics/tests/redeclarations/EnumName.fir.kt

@@ -1,3 +1,5 @@
-enum class A {
-    name
+enum class <!REDECLARATION, REDECLARATION!>A<!> {
+    <!REDECLARATION!>name<!>,
+    <!REDECLARATION!>ordinal<!>,
+    <!DEPRECATED_DECLARATION_OF_ENUM_ENTRY!>entries,<!>
 }

compiler/testData/diagnostics/tests/redeclarations/EnumName.kt

@@ -1,3 +1,5 @@
 enum class A {
-    <!REDECLARATION!>name<!>
+    <!REDECLARATION!>name<!>,
+    <!REDECLARATION!>ordinal<!>,
+    <!DEPRECATED_DECLARATION_OF_ENUM_ENTRY!>entries,<!>
 }

compiler/testData/diagnostics/tests/redeclarations/EnumName.txt

@@ -3,6 +3,10 @@ package
 public final enum class A : kotlin.Enum<A> {
     enum entry name
 
+    enum entry ordinal
+
+    enum entry entries
+
     private constructor A()
     @kotlin.internal.IntrinsicConstEvaluation public final override /*1*/ /*fake_override*/ val name: kotlin.String
     public final override /*1*/ /*fake_override*/ val ordinal: kotlin.Int

compiler/testData/diagnostics/tests/redeclarations/TypeAliasCtorVsFun.fir.kt

@@ -1,14 +0,0 @@
-// !DIAGNOSTICS: -UNUSED_VARIABLE -UNUSED_PARAMETER -TOPLEVEL_TYPEALIASES_ONLY
-class C(val x: Int)
-
-<!CONFLICTING_OVERLOADS!>typealias CC = C<!>
-
-<!CONFLICTING_OVERLOADS!>fun CC(x: Int)<!> = x
-
-class Outer {
-    class C(val x: Int)
-
-    typealias CC = C
-
-    fun CC(x: Int) = x
-}

compiler/testData/diagnostics/tests/redeclarations/TypeAliasCtorVsFun.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !DIAGNOSTICS: -UNUSED_VARIABLE -UNUSED_PARAMETER -TOPLEVEL_TYPEALIASES_ONLY
 class C(val x: Int)
 

compiler/testData/diagnostics/tests/suspendConflictingOverloads.fir.kt

@@ -1,14 +0,0 @@
-// ISSUE: KT-57100
-// WITH_STDLIB
-
-interface C07I01{
-    fun some() {}
-}
-
-interface C07I02{
-    suspend fun some() {}
-}
-
-class C07C01: C07I01, C07I02 {
-    override fun some() {}
-}

compiler/testData/diagnostics/tests/suspendConflictingOverloads.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // ISSUE: KT-57100
 // WITH_STDLIB
 
@@ -10,5 +11,5 @@ interface C07I02{
 }
 
 class C07C01: C07I01, C07I02 {
-    <!CONFLICTING_OVERLOADS!>override fun some()<!> {}
+    override fun some() {}
 }