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/runtime/runtime-strings.cc b/src/runtime/runtime-strings.cc
index bd4dd69..fcec47d 100644
--- a/src/runtime/runtime-strings.cc
+++ b/src/runtime/runtime-strings.cc
@@ -341,7 +341,7 @@
 
   RUNTIME_ASSERT(regexp_info->HasFastObjectElements());
 
-  RegExpImpl::GlobalCache global_cache(regexp, subject, true, isolate);
+  RegExpImpl::GlobalCache global_cache(regexp, subject, isolate);
   if (global_cache.HasException()) return isolate->heap()->exception();
 
   int capture_count = regexp->CaptureCount();