Register all ExternalReferences in serializer code.

src/assembler.cc

Index: src/assembler.cc
===================================================================
--- src/assembler.cc	(revision 22763)
+++ src/assembler.cc	(working copy)
@@ -1165,13 +1165,6 @@
 }
 
 
-ExternalReference ExternalReference::heap_always_allocate_scope_depth(
-    Isolate* isolate) {
-  Heap* heap = isolate->heap();
-  return ExternalReference(heap->always_allocate_scope_depth_address());
-}
-
-
 ExternalReference ExternalReference::new_space_allocation_limit_address(
     Isolate* isolate) {
   return ExternalReference(isolate->heap()->NewSpaceAllocationLimitAddress());
@@ -1264,23 +1257,6 @@
 }
 
 
-ExternalReference ExternalReference::address_of_minus_zero() {
-  return ExternalReference(
-      reinterpret_cast<void*>(&double_constants.minus_zero));
-}
-
-
-ExternalReference ExternalReference::address_of_zero() {
-  return ExternalReference(reinterpret_cast<void*>(&double_constants.zero));
-}
-
-
-ExternalReference ExternalReference::address_of_uint8_max_value() {
-  return ExternalReference(
-      reinterpret_cast<void*>(&double_constants.uint8_max_value));
-}
-
-
 ExternalReference ExternalReference::address_of_negative_infinity() {
   return ExternalReference(
       reinterpret_cast<void*>(&double_constants.negative_infinity));