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

runtime/lib/isolate.cc

Index: runtime/lib/isolate.cc
===================================================================
--- runtime/lib/isolate.cc	(revision 11113)
+++ runtime/lib/isolate.cc	(working copy)
@@ -343,7 +343,7 @@
     StartIsolateScope start_scope(isolate);
     Zone zone(isolate);
     HandleScope handle_scope(isolate);
-    if (!ClassFinalizer::FinalizePendingClasses()) {
+    if (!ClassFinalizer::FinalizeAllClasses()) {
       // Error is in sticky error already.
       return false;
     }