Increase experimental version to JDK 14.

Bug: b/226648936
Change-Id: I398d9654172b4b4f36847b6fa6ad66a4fe791b61
diff --git a/src/main/java/com/android/tools/r8/utils/InternalOptions.java b/src/main/java/com/android/tools/r8/utils/InternalOptions.java
index e389b61..dc0a966 100644
--- a/src/main/java/com/android/tools/r8/utils/InternalOptions.java
+++ b/src/main/java/com/android/tools/r8/utils/InternalOptions.java
@@ -137,7 +137,7 @@
   }
 
   public static final CfVersion SUPPORTED_CF_VERSION = CfVersion.V17;
-  public static final CfVersion EXPERIMENTAL_CF_VERSION = CfVersion.V12;
+  public static final CfVersion EXPERIMENTAL_CF_VERSION = CfVersion.V14;
 
   public static final int SUPPORTED_DEX_VERSION =
       AndroidApiLevel.LATEST.getDexVersion().getIntValue();