RFR: 8341820: Check return value of hcreate_r

[Lutz Schmidt]

On Thu, 10 Oct 2024 08:57:44 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> In symtab.c there is some coding where hcreate_r is used. We should check the return value of the call (previously there was some guarantee checking the return value but uncommented).
> 
> This has been discussed in the PR of [JDK-8341722](https://bugs.openjdk.org/browse/JDK-8341722) .

LGTM.

-------------

Marked as reviewed by lucy (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/21445#pullrequestreview-2362219032