[libc][NFC] Adjust the libc init / fini array test

Summary:
The NVPTX backend is picky about the definitions of functions. Because
we call these functions with these arguments it can cause some problems
when it goes through the backend. This was observed in a different test
for `printf` that hasn't been landed yet. Also adjust the priority.

libc/test/integration/startup/gpu/init_fini_array_test.cpp

@@ -37,18 +37,18 @@ A global(GLOBAL_INDEX, INITVAL_INITIALIZER);
 int initval = 0;
 int before = 0;
 
-__attribute__((constructor(101))) void run_before() {
+__attribute__((constructor(101))) void run_before(int, char **, char **) {
   before = BEFORE_INITIALIZER;
 }
 
-__attribute__((constructor(65535))) void run_after() {
+__attribute__((constructor(65535))) void run_after(int, char **, char **) {
   ASSERT_EQ(before, BEFORE_INITIALIZER);
 }
 
 __attribute__((constructor)) void set_initval() {
   initval = INITVAL_INITIALIZER;
 }
-__attribute__((destructor(1))) void reset_initval() {
+__attribute__((destructor(101))) void reset_initval() {
   ASSERT_TRUE(global_destroyed);
   initval = 0;
 }