Range Analysis: Compute range of built-in call `max`

This patch computes the range of a core built-in call `max`.
- When both `a` and `b` are constant values, the range of
  `max(a, b)` will also be a constant value.
- When the range of `a` is [min1, max1] and the range of `b` is
  [min2, max2], the range of `max(a, b)` is `[max(min1, min2),
  max(max1, max2)]`.
- The ranges that represent the whole range of `i32` or `u32`
  are treated as invalid ones (e.g. max(a, i32::kLowestValue)).

Bug: 348701956
Test: tint_unittests
Change-Id: Id2c650b289da7221744c28ca92ca92d8c0a84b6b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/253576
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: James Price <jrprice@google.com>