tree ff85fac40a1a562ded92b32e8300a420dfe0f59b
parent be80d124a567546e308636dc1238d3ae6f6a3c9c
author Søren Gjesse <sgjesse@google.com> 1581674549 +0100
committer Søren Gjesse <sgjesse@google.com> 1581680184 +0000

Use a concurrent TreeSet implementation for direct sub types

This set can be updated by synthesized classes added during IR processing.

Bug: 149516488
Change-Id: If564eb6e140adbd3cfe6ba3badb0af212578bce6