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/test/mjsunit/ignition/stack-trace-source-position.js b/test/mjsunit/ignition/stack-trace-source-position.js
new file mode 100644
index 0000000..ce236c3
--- /dev/null
+++ b/test/mjsunit/ignition/stack-trace-source-position.js
@@ -0,0 +1,21 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --ignition-filter=f
+// Flags: --no-turbo
+
+// TODO(yangguo): fix for turbofan
+
+function f(x) {
+  if (x == 0) {
+    return new Error().stack;
+  }
+  return f(x - 1);
+}
+
+var stack_lines = f(2).split("\n");
+
+assertTrue(/at f \(.*?:12:12\)/.test(stack_lines[1]));
+assertTrue(/at f \(.*?:14:10\)/.test(stack_lines[2]));
+assertTrue(/at f \(.*?:14:10\)/.test(stack_lines[3]));