MIPS: arch-independent changes to support mips.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index b51121338b2c2a738d42aca9aa40111eff290f11..716f1b3c6a0daf67e5269cb09d3e974f3fbdf623 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -6728,6 +6728,12 @@ class ObjectVisitor BASE_EMBEDDED {
   // Handy shorthand for visiting a single pointer.
   virtual void VisitPointer(Object** p) { VisitPointers(p, p + 1); }
 
+  // Variant of VisitPointer() can be defined in visitors where
+  // reloc info is needed (initially defined for mips).
+  virtual void VisitPointer(Object** p, RelocInfo* rinfo) {
+    VisitPointers(p, p + 1);
+  }
+
   // Visits a contiguous arrays of external references (references to the C++
   // heap) in the half-open range [start, end). Any or all of the values
   // may be modified on return.