hg: jdk/sandbox: 8213014: Crash in CompileBroker::make_thread due to OOM

[chris.hegarty at oracle.com]

Changeset: 52f892f43a05
Author:    thartmann
Date:      2018-11-01 14:15 +0100
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/52f892f43a05

8213014: Crash in CompileBroker::make_thread due to OOM
Summary: Added missing null checks and checks for pending exception.
Reviewed-by: kvn, dholmes, mdoerr

! src/hotspot/share/compiler/compileBroker.cpp
! src/hotspot/share/compiler/compileBroker.hpp