hg: jdk/submit: 8226809: Circular reference in printed stack trace is not correctly indented & ambiguous

[joe.darcy at oracle.com]

Changeset: 1de28d191f9c
Author:    darcy
Date:      2019-06-28 18:51 -0700
URL:       http://hg.openjdk.java.net/jdk/submit/rev/1de28d191f9c

8226809: Circular reference in printed stack trace is not correctly indented & ambiguous
Reviewed-by: bpb

! src/java.base/share/classes/java/lang/Throwable.java