FIR: fix of super.methodOfAny resolve in case of one supertype

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/calls/SuperCalls.kt

@@ -36,12 +36,13 @@ fun BodyResolveComponents.findTypesForSuperCandidates(
     containingCall: FirQualifiedAccess,
 ): Collection<ConeKotlinType> {
     val supertypes = superTypeRefs.map { (it as FirResolvedTypeRef).type }
-    if (supertypes.size <= 1) return supertypes
+    val isMethodOfAny = containingCall is FirFunctionCall && isCallingMethodOfAny(containingCall)
+    if (supertypes.size <= 1 && !isMethodOfAny) return supertypes
 
     return when (containingCall) {
         is FirFunctionCall -> {
             val calleeName = containingCall.calleeReference.name
-            if (isCallingMethodOfAny(containingCall)) {
+            if (isMethodOfAny) {
                 resolveSupertypesForMethodOfAny(supertypes, calleeName)
             } else {
                 resolveSupertypesByCalleeName(supertypes, calleeName)

compiler/testData/diagnostics/tests/thisAndSuper/unqualifiedSuper/withMethodOfAnyOverridenInInterface.fir.kt

@@ -1,8 +0,0 @@
-interface IWithToString {
-    override fun toString(): String
-}
-
-class A : IWithToString {
-    // Should be Any#toString(), even though IWithToString defines an abstract toString.
-    override fun toString(): String = super.<!ABSTRACT_SUPER_CALL!>toString<!>()
-}

compiler/testData/diagnostics/tests/thisAndSuper/unqualifiedSuper/withMethodOfAnyOverridenInInterface.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 interface IWithToString {
     override fun toString(): String
 }