RFR: 8257970: Remove julong types in os::limit_heap_by_allocatable_memory

[Per Liden]

On Thu, 10 Dec 2020 15:29:32 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

>> Please review this cleanup. In the review of JDK-8257901, the request came up to change the `julong` types (return value, arguments) in `os::limit_heap_by_allocatable_memory()` to `size_t`. This change of types also propagates to `os::has_allocatable_memory_limit()`.
>
> Marked as reviewed by tschatzl (Reviewer).

Thanks for reviewing!

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PR: https://git.openjdk.java.net/jdk/pull/1736