Add liveedit-debugger.js to the list of JS library files in the snapshot

This fixes a crash in the WebKit layout tests due to a failure in
Debug::ClearMirrorCache() when attempting to call the JS ClearMirrorCache()
function.

Bug: 2689013
Change-Id: I68acf34c2132a51491e974cb561280aa83ef6260
diff --git a/Android.v8common.mk b/Android.v8common.mk
index 75a5247..d8f12bc 100644
--- a/Android.v8common.mk
+++ b/Android.v8common.mk
@@ -142,4 +142,5 @@
 	src/json.js \
 	src/mirror-debugger.js \
 	src/debug-debugger.js \
+	src/liveedit-debugger.js \
 	src/macros.py