Fix factory name to result cid mapping, run type propagation once more after constant propagation.

runtime/vm/compiler.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/compiler.h"
 
 #include "vm/assembler.h"
 
 #include "vm/ast_printer.h"
 #include "vm/code_generator.h"
@@ skipping 198 matching lines @@
       DEBUG_ASSERT(flow_graph->VerifyUseLists());
 
       if (FLAG_constant_propagation) {
         ConstantPropagator::Optimize(flow_graph);
         DEBUG_ASSERT(flow_graph->VerifyUseLists());
         // A canonicalization pass to remove e.g. smi checks on smi constants.
         optimizer.Canonicalize();
         DEBUG_ASSERT(flow_graph->VerifyUseLists());
       }
 
+      // Propagate types and eliminate even more type tests.
+      if (FLAG_propagate_types) {
+        FlowGraphTypePropagator propagator(flow_graph);
+        propagator.Propagate();
+        DEBUG_ASSERT(flow_graph->VerifyUseLists());
+      }
+
       // Unbox doubles. Performed after constant propagation to minimize
       // interference from phis merging double values and tagged
       // values comming from dead paths.
       optimizer.SelectRepresentations();
       DEBUG_ASSERT(flow_graph->VerifyUseLists());
 
       if (FLAG_common_subexpression_elimination) {
         if (DominatorBasedCSE::Optimize(flow_graph)) {
           DEBUG_ASSERT(flow_graph->VerifyUseLists());
           // Do another round of CSE to take secondary effects into account:
@@ skipping 422 matching lines @@
       Object::Handle(isolate->object_store()->sticky_error());
     isolate->object_store()->clear_sticky_error();
     isolate->set_long_jump_base(base);
     return result.raw();
   }
   UNREACHABLE();
   return Object::null();
 }
 
 }  // namespace dart