Minor cleanups of numeric seeded hashing patch.

src/heap.cc

Index: src/heap.cc
===================================================================
--- src/heap.cc	(revision 10365)
+++ src/heap.cc	(working copy)
@@ -5644,13 +5644,13 @@
   if (!lo_space_->Setup()) return false;
 
   // Setup the seed that is used to randomize the string hash function.
-  ASSERT(string_hash_seed() == 0);
-  if (FLAG_randomize_string_hashes) {
-    if (FLAG_string_hash_seed == 0) {
-      set_string_hash_seed(
+  ASSERT(hash_seed() == 0);
+  if (FLAG_randomize_hashes) {
+    if (FLAG_hash_seed == 0) {
+      set_hash_seed(
           Smi::FromInt(V8::RandomPrivate(isolate()) & 0x3fffffff));
     } else {
-      set_string_hash_seed(Smi::FromInt(FLAG_string_hash_seed));
+      set_hash_seed(Smi::FromInt(FLAG_hash_seed));
     }
   }