Update Art and Art tests from aosp master

- This update to Art 5b6e881153143a0c7b613fc7129a11d285c8df26 is
to have the const-method-handle and const-method-type support.

Change-Id: Ie91ed39ccb8916bd2eeb1a09a889dc22d64e4f73
diff --git a/build.gradle b/build.gradle
index 9539df2..6be6012 100644
--- a/build.gradle
+++ b/build.gradle
@@ -185,7 +185,7 @@
 
 def cloudDependencies = [
         "tests"      : [
-                "2017-07-27/art",
+                "2017-10-04/art",
                 "2016-12-19/art"
         ],
         "third_party": [
@@ -557,7 +557,7 @@
 task createArtTests(type: Exec) {
     def outputDir = "build/generated/test/java/com/android/tools/r8/art"
     def createArtTestsScript = "tools/create_art_tests.py"
-    inputs.file "tests/2017-07-27/art.tar.gz"
+    inputs.file "tests/2017-10-04/art.tar.gz"
     inputs.file createArtTestsScript
     outputs.dir outputDir
     dependsOn downloadDeps