hg: jdk/sandbox: 8237753: 32-bit builds are broken after JDK-823059

[chris.hegarty at oracle.com]

Changeset: d4821c2dc343
Author:    pchilanomate
Date:      2020-01-23 04:54 +0000
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/d4821c2dc343

8237753: 32-bit builds are broken after JDK-823059
Summary: Changed _pending_threads to be 32 bits instead of 64
Reviewed-by: dholmes

! src/hotspot/share/runtime/handshake.cpp