[profile] Update test to make condition non-redundant.

The tests contain a redundant condition in the else if branch that can
be simplified with fb13dcf.

Update the condition used to prevent it from getting removed.

Alive2 proof for check removal:
https://alive2.llvm.org/ce/z/iFBnsy

Author: fhahn

compiler-rt/test/profile/Linux/counter_promo_for.c

@@ -46,7 +46,7 @@ __attribute__((noinline)) void foo(int n, int N) {
   for (i = 0; i < N; i++) {
     if (i < n + 1)
       bar(1);
-    else if (i < n - 1)
+    else if (i == n - 1)
       bar(2);
     else
       bar(3);

compiler-rt/test/profile/Linux/counter_promo_while.c

@@ -41,7 +41,7 @@ __attribute__((noinline)) void foo(int n, int N) {
   while (i < N) {
     if (i < n + 1)
       bar(1);
-    else if (i < n - 1)
+    else if (i == n - 1)
       bar(2);
     else
       bar(3);