Don't allow large object space to grow over the max oldspace limit (fixes issue 1717)

src/heap.cc

Index: src/heap.cc
===================================================================
--- src/heap.cc	(revision 9623)
+++ src/heap.cc	(working copy)
@@ -5450,7 +5450,7 @@
   // The large object code space may contain code or data.  We set the memory
   // to be non-executable here for safety, but this means we need to enable it
   // explicitly when allocating large code objects.
-  lo_space_ = new LargeObjectSpace(this, LO_SPACE);
+  lo_space_ = new LargeObjectSpace(this, max_old_generation_size_, LO_SPACE);
   if (lo_space_ == NULL) return false;
   if (!lo_space_->Setup()) return false;
   if (create_heap_objects) {