Release desugar libs to google3

Bug: 165456060
Change-Id: I5273715862ec5f05f875f208b8a62385ea3e9941
diff --git a/tools/r8_release.py b/tools/r8_release.py
index e813756..dce7dad 100755
--- a/tools/r8_release.py
+++ b/tools/r8_release.py
@@ -357,11 +357,17 @@
       g4_open('src.jar')
       g4_open('lib.jar')
       g4_open('lib.jar.map')
+      g4_open('desugar_jdk_libs.json')
+      g4_open('desugar_jdk_libs_configuration.jar')
       download_file(options.version, 'r8-full-exclude-deps.jar', 'full.jar')
       download_file(options.version, 'r8-src.jar', 'src.jar')
       download_file(options.version, 'r8lib-exclude-deps.jar', 'lib.jar')
       download_file(
           options.version, 'r8lib-exclude-deps.jar.map', 'lib.jar.map')
+      download_file(options.version, 'desugar_jdk_libs.json',
+                    'desugar_jdk_libs.json')
+      download_file(options.version, 'desugar_jdk_libs_configuration.jar',
+                    'desugar_jdk_libs_configuration.jar')
       g4_open('METADATA')
       sed(r'[1-9]\.[0-9]{1,2}\.[0-9]{1,3}-dev',
           options.version,