Update ASM version to 8.0

Change-Id: Iad6597e02449965eca92093240b68c7c05319fae
diff --git a/build.gradle b/build.gradle
index cec21ac..919888b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -35,7 +35,7 @@
 
 ext {
     androidSupportVersion = '25.4.0'
-    asmVersion = '7.2'
+    asmVersion = '8.0'
     espressoVersion = '3.0.0'
     fastutilVersion = '7.2.0'
     guavaVersion = '23.0'
@@ -2399,4 +2399,4 @@
       println commandLine.join(' ')
     }
   }
-}
\ No newline at end of file
+}