Change lambda class name prefix for debugging support

IntelliJ detects lambda classes using the class name. It allows to
skip suspension in methods from such classes (like when stepping
through a lambda).

Bug: 38488663
Change-Id: I7805405decb9f6d2d53596938b8790801bdba5ac
diff --git a/src/main/java/com/android/tools/r8/ir/desugar/LambdaRewriter.java b/src/main/java/com/android/tools/r8/ir/desugar/LambdaRewriter.java
index 11484fb..5644096 100644
--- a/src/main/java/com/android/tools/r8/ir/desugar/LambdaRewriter.java
+++ b/src/main/java/com/android/tools/r8/ir/desugar/LambdaRewriter.java
@@ -50,7 +50,7 @@
   private static final String METAFACTORY_METHOD_NAME = "metafactory";
   private static final String METAFACTORY_ALT_METHOD_NAME = "altMetafactory";
 
-  static final String LAMBDA_CLASS_NAME_PREFIX = "-$Lambda$";
+  static final String LAMBDA_CLASS_NAME_PREFIX = "-$$Lambda$";
   static final String EXPECTED_LAMBDA_METHOD_PREFIX = "lambda$";
   static final DexType[] EMPTY_TYPE_ARRAY = new DexType[0];
   static final String LAMBDA_INSTANCE_FIELD_NAME = "INSTANCE";