Substitute type variables properly in ConeOverloadConflictResolver

#KT-46187 Fixed

compiler/testData/diagnostics/tests/callableReference/resolve/ambiguityWithBoundExtensionReceiver.fir.kt

@@ -1,15 +0,0 @@
-// SKIP_TXT
-// !LANGUAGE: +NewInference
-// !DIAGNOSTICS: -UNUSED_PARAMETER
-// !CHECK_TYPE
-
-fun <R> bar(f: () -> R): R = TODO()
-
-fun Any.foo() = 1
-fun A.foo() = ""
-
-class A {
-    fun main() {
-        <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>bar<!>(::<!OVERLOAD_RESOLUTION_AMBIGUITY!>foo<!>) checkType { _<String>() }
-    }
-}

compiler/testData/diagnostics/tests/callableReference/resolve/ambiguityWithBoundExtensionReceiver.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // SKIP_TXT
 // !LANGUAGE: +NewInference
 // !DIAGNOSTICS: -UNUSED_PARAMETER