Update dx to include ClassReferenceListBuilder API.

Change-Id: I2a024da4e28bd8a43490c4dc7201b1663cbbb960
diff --git a/tools/lib/dx.jar b/tools/lib/dx.jar
index 8e36d53..f3c83bd 100644
--- a/tools/lib/dx.jar
+++ b/tools/lib/dx.jar
Binary files differ