Version 3.1.56

Revert updates to CONSTANT_Dynamic desugaring.

Bug: 178172809
Change-Id: I91744c9fb96de0b0a42f6c5a3b73747baf051287

src/main/java/com/android/tools/r8/Version.java

diff --git a/src/main/java/com/android/tools/r8/Version.java b/src/main/java/com/android/tools/r8/Version.java
index 132b10f..346d9fb 100644
--- a/src/main/java/com/android/tools/r8/Version.java
+++ b/src/main/java/com/android/tools/r8/Version.java
@@ -11,7 +11,7 @@
 
   // This field is accessed from release scripts using simple pattern matching.
   // Therefore, changing this field could break our release scripts.
-  public static final String LABEL = "3.1.55";
+  public static final String LABEL = "3.1.56";
 
   private Version() {
   }