r8: Update R8 to 2.2.0-dev

Change-Id: I54380541cb79945e569336d7b55db4501e4d7015
Signed-off-by: Jason Edson <jaysonedson@gmail.com>
diff --git a/r8.jar b/r8.jar
index aaac941..bd7677a 100644
--- a/r8.jar
+++ b/r8.jar
Binary files differ
diff --git a/r8.jar.map b/r8.jar.map
index fc2c46a..c1e8579 100644
--- a/r8.jar.map
+++ b/r8.jar.map
@@ -1,5 +1,5 @@
 # compiler: R8
-# compiler_version: 2.1.28-dev
+# compiler_version: 2.2.0-dev
 # compiler_hash: engineering
 # pg_map_id: 2f3f423
 # common_typos_disable