Cleanup R8 rules (#1739)

app/proguard-rules.pro

@@ -1,32 +1,16 @@
-# Add project specific ProGuard rules here.
-# By default, the flags in this file are appended to flags specified
-# in /opt/android-sdk/tools/proguard/proguard-android.txt
-# You can edit the include path and order by changing the proguardFiles
-# directive in build.gradle.
-#
-# For more details, see
-#   http://developer.android.com/guide/developing/tools/proguard.html
-
-# Add any project specific keep options here:
-
-# If your project uses WebView with JS, uncomment the following
-# and specify the fully qualified class name to the JavaScript interface
-# class:
-#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
-#   public *;
-#}
--keepattributes SourceFile,LineNumberTable
+-keepattributes SourceFile,LineNumberTable,EnclosingMethod
 -dontobfuscate
 
 -keep class com.jcraft.jsch.**
 -keep class org.eclipse.jgit.internal.JGitText { *; }
 -keep class org.bouncycastle.jcajce.provider.** { *; }
 -keep class !org.bouncycastle.jce.provider.X509LDAPCertStoreSpi,org.bouncycastle.jce.provider.** { *; }
-# WhatTheStack
--keep class com.haroldadmin.whatthestack.WhatTheStackInitializer {
-  <init>();
-}
 
 -dontwarn sun.misc.SignalHandler
 -dontwarn java.lang.instrument.ClassFileTransformer
 -dontwarn javax.servlet.ServletContextListener
+
+# WhatTheStack
+-keep class com.haroldadmin.whatthestack.WhatTheStackInitializer {
+  <init>();
+}