git: openjdk/jdk: 8252887: Zero VM is broken after JDK-8252661

[Jie Fu]

Changeset: 891886b6
Author:    Jie Fu <jiefu at openjdk.org>
Date:      2020-09-08 02:35:51 +0000
URL:       https://git.openjdk.java.net/jdk/commit/891886b6

8252887: Zero VM is broken after JDK-8252661

Zero VM is broken due to 'block_if_requested' is not a member of 'SafepointMechanism'.

Reviewed-by: dholmes

! src/hotspot/share/interpreter/zero/bytecodeInterpreter.cpp