[FIR] Report MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES

Reporting it for `VIRTUAL_MEMBER_HIDDEN`
is ok, because `VIRTUAL_MEMBER_HIDDEN`
has always been an error, so we are
allowed to treat these as overrides
implicitly.

^KT-59408 Fixed
^KT-59419 Fixed
^KT-57076 Fixed

compiler/testData/diagnostics/tests/override/MultipleDefaultParametersInSupertypes.fir.kt

@@ -1,15 +0,0 @@
-interface X {
-    fun foo(a : Int = 1)
-}
-
-interface Y {
-    fun foo(a : Int = 1)
-}
-
-class Z : X, Y {
-    override fun foo(a : Int) {}
-}
-
-object ZO : X, Y {
-    override fun foo(a : Int) {}
-}

compiler/testData/diagnostics/tests/override/MultipleDefaultParametersInSupertypes.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 interface X {
     fun foo(a : Int = 1)
 }

compiler/testData/diagnostics/tests/override/MultipleDefaultParametersInSupertypesNoOverride.fir.kt

@@ -0,0 +1,15 @@
+interface X {
+    fun foo(a : Int = 1)
+}
+
+interface Y {
+    fun foo(a : Int = 1)
+}
+
+class Z : X, Y {
+    fun <!VIRTUAL_MEMBER_HIDDEN!>foo<!>(<!MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES!>a : Int<!>) {}
+}
+
+object ZO : X, Y {
+    fun <!VIRTUAL_MEMBER_HIDDEN!>foo<!>(<!MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES!>a : Int<!>) {}
+}

compiler/testData/diagnostics/tests/override/MultipleDefaultParametersInSupertypesNoOverride.kt

@@ -1,4 +1,3 @@
-// FIR_IDENTICAL
 interface X {
     fun foo(a : Int = 1)
 }

compiler/testData/diagnostics/tests/override/MultipleDefaultsAndNamesInSupertypes.fir.kt

@@ -11,4 +11,4 @@ interface C {
 }
 
 // TODO DIFFERENT_NAMES_FOR_THE_SAME_PARAMETER_IN_SUPERTYPES reported twice
-class Z : A, B(), C
+<!MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES_WHEN_NO_EXPLICIT_OVERRIDE!>class Z<!> : A, B(), C

compiler/testData/diagnostics/tests/override/MultipleDefaultsInSupertypesNoExplicitOverride.fir.kt

@@ -1,10 +0,0 @@
-interface X {
-    fun foo(a : Int = 1)
-}
-
-interface Y {
-    fun foo(a : Int = 1)
-}
-
-<!ABSTRACT_MEMBER_NOT_IMPLEMENTED!>class Z1<!> : X, Y {} // BUG
-<!ABSTRACT_MEMBER_NOT_IMPLEMENTED!>object Z1O<!> : X, Y {} // BUG

compiler/testData/diagnostics/tests/override/MultipleDefaultsInSupertypesNoExplicitOverride.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 interface X {
     fun foo(a : Int = 1)
 }