Return Object* instead of MaybeObject* from runtime calls.

src/assembler.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 1035 matching lines @@
       isolate,
       FUNCTION_ADDR(StoreBuffer::StoreBufferOverflow)));
 }
 
 
 ExternalReference ExternalReference::flush_icache_function(Isolate* isolate) {
   return ExternalReference(Redirect(isolate, FUNCTION_ADDR(CPU::FlushICache)));
 }
 
 
-ExternalReference ExternalReference::perform_gc_function(Isolate* isolate) {
-  return
-      ExternalReference(Redirect(isolate, FUNCTION_ADDR(Runtime::PerformGC)));
-}
-
-
-ExternalReference ExternalReference::out_of_memory_function(Isolate* isolate) {
-  return
-      ExternalReference(Redirect(isolate, FUNCTION_ADDR(Runtime::OutOfMemory)));
-}
-
-
 ExternalReference ExternalReference::delete_handle_scope_extensions(
     Isolate* isolate) {
   return ExternalReference(Redirect(
       isolate,
       FUNCTION_ADDR(HandleScope::DeleteExtensions)));
 }
 
 
 ExternalReference ExternalReference::get_date_field_function(
     Isolate* isolate) {
@@ skipping 561 matching lines @@
       r2 = r2 - ad;
     }
     delta = ad - r2;
   } while (q1 < delta || (q1 == delta && r1 == 0));
   int32_t mul = static_cast<int32_t>(q2 + 1);
   multiplier_ = (d < 0) ? -mul : mul;
   shift_ = p - 32;
 }
 
 } }  // namespace v8::internal