git: openjdk/loom: fibers: variable-size ExtentLocal cache.

[duke]

Changeset: 786bc9fd
Author:    aph <aph at gcc.gnu.org>
Date:      2022-04-27 18:09:56 +0000
URL:       https://git.openjdk.java.net/loom/commit/786bc9fdcd24e48d3bdc62fd73c3897791393972

variable-size ExtentLocal cache.

! src/java.base/share/classes/jdk/internal/vm/Continuation.java
! src/jdk.incubator.concurrent/share/classes/jdk/incubator/concurrent/ExtentLocal.java