c++20 does not like arithmetic between different enumeration types

[Ninja3047]

make errors go away with static_cast

[github-actions]

See the diff generated by this PR for the tests here: https://github.com/lifting-bits/rellic/actions/runs/2982045772

fizzbuzz.bc

--- /dev/fd/63	2022-09-02 22:09:36.813970650 +0000
+++ /dev/fd/62	2022-09-02 22:09:36.813970650 +0000
@@ -11,7 +11,7 @@
     var1 = 0U;
     while ((int)var1 < 30)
         {
-            if ((int)var1 % 3 != 0U || !((int)var1 % 5 == 0U || (int)var1 % 3 != 0U)) {
+            if (!((int)var1 % 3 != 0U || (int)var1 % 5 == 0U) || (int)var1 % 3 != 0U) {
                 if ((int)var1 % 3 != 0U) {
                     if ((int)var1 % 5 != 0U) {
                         printf("%d\n", var1);

typedefs_of_typedefs.bc

switch_loop.bc

func_cond_zero_arg.bc

fcmp.bc

conflicting_names.bc

struct.bc

issue_183_literal_structs.bc

zeroinit.bc

issue_127_uint128_t_lit.bc

struct_swap.bc

init_list.bc

ret0.bc

bool.bc

short.bc

cast.bc

nullptr.bc

nested_struct.bc

array_swap.bc

binops.bc

bitmask.bc

loop.bc

float.bc

reg_test_structure_fields.bc

vectors.bc

funcptr.bc

goto_loop.bc

branch.bc

bitops.bc

trunc.bc

inttoptr.bc

issue_4.bc

issue_123_uint128_t.bc

fizzbuzz_stateful.bc

issue_94_strncmp.bc

global_using_function_decl.bc

byval_struct.bc

nested_while.bc

func_cond_two_arg.bc

conflicting_global.bc

assert.bc

zext.bc

switch.bc

template_parameter_pack.bc

byval_tail_nogep.ll

byval_tail_gep.ll