git: openjdk/loom: fibers: Refactor java_lang_Throwable::fill_in_stack_trace

[duke]

Changeset: 2e7f748e
Author:    Ron Pressler <ron.pressler at oracle.com>
Date:      2020-07-14 16:25:53 +0000
URL:       https://git.openjdk.java.net/loom/commit/2e7f748e

Refactor java_lang_Throwable::fill_in_stack_trace

! src/hotspot/share/classfile/javaClasses.cpp
! test/hotspot/jtreg/runtime/Throwable/ThrowableIntrospectionSegfault.java