RFR: 8371104: gtests should use wrappers for <limits> and <type_traits>

[John R Rose]

On Mon, 3 Nov 2025 18:01:36 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

> Please review this trivial change, updating HotSpot gtests to include the new
> cppstdlib/{limits,type_traits}.hpp wrappers instead of including the Standard
> Library headers directly.
> 
> Testing: mach5 tier1

Marked as reviewed by jrose (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/28114#pullrequestreview-3424899657