git: openjdk/jdk: 8304138: [JVMCI] Test FailedSpeculation existence before appending.

[Doug Simon]

Changeset: 7503ecc0
Author:    Yudi Zheng <yzheng at openjdk.org>
Committer: Doug Simon <dnsimon at openjdk.org>
Date:      2023-03-18 09:41:39 +0000
URL:       https://git.openjdk.org/jdk/commit/7503ecc0f185f6da777c022a66d7af6c40dcd05f

8304138: [JVMCI] Test FailedSpeculation existence before appending.

Reviewed-by: kvn, dnsimon

! src/hotspot/share/oops/methodData.cpp