Fix warning caused by __builtin_expect_with_probability was not handled

in places such as constant folding

Previously some places that should have handled
__builtin_expect_with_probability is missing, so in some case it acts
differently than __builtin_expect.
For example it was not handled in constant folding, thus in the
following program, the "if" condition should be constantly true and
folded, but previously it was not handled and cause warning "control may
reach end of non-void function" (while __builtin_expect does not):

__attribute__((noreturn)) extern void bar();
int foo(int x, int y) {
  if (y) {
    if (__builtin_expect_with_probability(1, 1, 1))
      bar();
  }
  else
    return 0;
}

Now it's fixed.

Differential Revisions: https://reviews.llvm.org/D83362