decomp: logic-target (#1861)

Also adds all names for `focus-status`.

Closes #1859 and updates ref tests for Jak 1 for this edge case.

decompiler/IR2/bitfields.cpp

@@ -944,6 +944,9 @@ Form* cast_to_bitfield_enum(const EnumType* type_info,
                             bool no_head) {
   ASSERT(type_info->is_bitfield());
   auto elts = decompile_bitfield_enum_from_int(TypeSpec(type_info->get_name()), env.dts->ts, in);
+  if (in == -1) {
+    return nullptr;
+  }
   if (no_head) {
     ASSERT(elts.size() >= 1);
   }