Do not eagerly finalize classes in CHA, instead regard unfinalized classes as ’non-existent’ an…

runtime/vm/isolate.cc

Index: runtime/vm/isolate.cc
===================================================================
--- runtime/vm/isolate.cc	(revision 30577)
+++ runtime/vm/isolate.cc	(working copy)
@@ -529,7 +529,7 @@
     StartIsolateScope start_scope(isolate);
     StackZone zone(isolate);
     HandleScope handle_scope(isolate);
-    if (!ClassFinalizer::FinalizePendingClasses()) {
+    if (!ClassFinalizer::FinalizeTypeHierarchy()) {
       // Error is in sticky error already.
       return false;
     }