Reapply "Eliminate dependencies on assemblers and code stubs in precompiled runtime."

runtime/vm/flow_graph_builder.cc

Index: runtime/vm/flow_graph_builder.cc
diff --git a/runtime/vm/flow_graph_builder.cc b/runtime/vm/flow_graph_builder.cc
index 363d85957fdecb87461c1e5d090ccc061d668ccb..959b4101de2cb160970d48c8170208d5004be4c9 100644
--- a/runtime/vm/flow_graph_builder.cc
+++ b/runtime/vm/flow_graph_builder.cc
@@ -2,6 +2,8 @@
 // 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.
 
+#if !defined(DART_PRECOMPILED_RUNTIME)
+
 #include "vm/flow_graph_builder.h"
 
 #include "lib/invocation_mirror.h"
@@ -4420,3 +4422,5 @@ bool FlowGraphBuilder::SimpleInstanceOfType(const AbstractType& type) {
 }
 
 }  // namespace dart
+
+#endif  // !defined(DART_PRECOMPILED_RUNTIME)