Eagerly finalize bool class, before bool constants are used in the compiler.

runtime/vm/bootstrap.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/bootstrap.h"
 
 #include "include/dart_api.h"
 
 #include "vm/bootstrap_natives.h"
 #include "vm/class_finalizer.h"
@@ skipping 337 matching lines @@
       }
     }
   }
   if (error.IsNull()) {
     SetupNativeResolver();
     ClassFinalizer::ProcessPendingClasses();
 
     // Eagerly compile the _Closure class as it is the class of all closure
     // instances. This allows us to just finalize function types
     // without going through the hoops of trying to compile their scope class.
-    const Class& cls =
+    Class& cls =
         Class::Handle(zone, isolate->object_store()->closure_class());
     Compiler::CompileClass(cls);
+    // Eagerly compile Bool class, bool constants are used from within compiler.
+    cls = isolate->object_store()->bool_class();
+    Compiler::CompileClass(cls);
   }
 
   // Restore the library tag handler for the isolate.
   isolate->set_library_tag_handler(saved_tag_handler);
 
   return error.raw();
 }
 
 }  // namespace dart