Make ClassFinalizer indifferent on whether we are generating a snapshot or not.

runtime/vm/object.cc

Index: runtime/vm/object.cc
===================================================================
--- runtime/vm/object.cc	(revision 11197)
+++ runtime/vm/object.cc	(working copy)
@@ -7820,6 +7820,15 @@
 }
 
 
+RawApiError* ApiError::New() {
+  ASSERT(Object::api_error_class() != Class::null());
+  RawObject* raw = Object::Allocate(ApiError::kClassId,
+                                    ApiError::InstanceSize(),
+                                    Heap::kOld);
+  return reinterpret_cast<RawApiError*>(raw);
+}
+
+
 RawApiError* ApiError::New(const String& message, Heap::Space space) {
   ASSERT(Object::api_error_class() != Class::null());
   ApiError& result = ApiError::Handle();
@@ -7851,6 +7860,15 @@
 }
 
 
+RawLanguageError* LanguageError::New() {
+  ASSERT(Object::language_error_class() != Class::null());
+  RawObject* raw = Object::Allocate(LanguageError::kClassId,
+                                    LanguageError::InstanceSize(),
+                                    Heap::kOld);
+  return reinterpret_cast<RawLanguageError*>(raw);
+}
+
+
 RawLanguageError* LanguageError::New(const String& message, Heap::Space space) {
   ASSERT(Object::language_error_class() != Class::null());
   LanguageError& result = LanguageError::Handle();