Fix signature generation for calls to enum and inner class constructors

The synthesized arguments caused the size of default value mask off by
one when it is close to the boundary of Int.SIZE, which in turn
resulted in wrong signature at call sites.

compiler/testData/codegen/box/enum/manyDefaultParameters.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JVM_IR
 enum class ClassTemplate(
         // var bug: Int = 1,
         var code: Int,