Version 3.1.40

Bug: 206891715
Change-Id: I22a9da84df8fb9fe5acc739e41d8a5c1e9db435f

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 9841163..e181e8a 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 = "3.1.39";
+  public static final String LABEL = "3.1.40";
 
   private Version() {
   }