Revert "Revert "Upgrade to 5.0.71.48"" DO NOT MERGE

This reverts commit f2e3994fa5148cc3d9946666f0b0596290192b0e,
and updates the x64 makefile properly so it doesn't break that
build.

FPIIM-449

Change-Id: Ib83e35bfbae6af627451c926a9650ec57c045605
(cherry picked from commit 109988c7ccb6f3fd1a58574fa3dfb88beaef6632)
diff --git a/src/debug/liveedit.cc b/src/debug/liveedit.cc
index f1f3f23..91c990d 100644
--- a/src/debug/liveedit.cc
+++ b/src/debug/liveedit.cc
@@ -1857,8 +1857,8 @@
     HandleScope scope(isolate);
 
     for (int i = 0; i < len; i++) {
-      Handle<JSValue> jsvalue =
-          Handle<JSValue>::cast(FixedArray::get(shared_info_array, i));
+      Handle<JSValue> jsvalue = Handle<JSValue>::cast(
+          FixedArray::get(*shared_info_array, i, isolate));
       Handle<SharedFunctionInfo> shared =
           UnwrapSharedFunctionInfoFromJSValue(jsvalue);