[FIR] Implement Int -> Long conversions for literals and operators over them

^KT-38895
^KT-50996 Fixed
^KT-51000 Fixed
^KT-51003 Fixed
^KT-51018 Fixed

core/descriptors/src/org/jetbrains/kotlin/types/checker/ClassicTypeSystemContext.kt

@@ -45,6 +45,14 @@ interface ClassicTypeSystemContext : TypeSystemInferenceExtensionContext, TypeSy
         return this is IntegerLiteralTypeConstructor
     }
 
+    override fun TypeConstructorMarker.isIntegerLiteralConstantTypeConstructor(): Boolean {
+        return isIntegerLiteralTypeConstructor()
+    }
+
+    override fun TypeConstructorMarker.isIntegerConstantOperatorTypeConstructor(): Boolean {
+        return false
+    }
+
     override fun TypeConstructorMarker.isLocalType(): Boolean {
         require(this is TypeConstructor, this::errorMessage)
         return declarationDescriptor?.classId?.isLocal == true