Non-tree-shaking --precompile.

runtime/vm/parser.cc

Index: runtime/vm/parser.cc
diff --git a/runtime/vm/parser.cc b/runtime/vm/parser.cc
index ee41192a02ee984dc7f60f0bbad54cd0fdf63001..00acf39c96d6ce8d5624d88b86aac4525e91ef81 100644
--- a/runtime/vm/parser.cc
+++ b/runtime/vm/parser.cc
@@ -1059,7 +1059,6 @@ SequenceNode* Parser::ParseStaticInitializer() {
 
 ParsedFunction* Parser::ParseStaticFieldInitializer(const Field& field) {
   ASSERT(field.is_static());
-  ASSERT(field.value() == Object::transition_sentinel().raw());

[rmacnak, 2015/07/29 19:30:38]

Now we sometimes create an initializer for a field that was already initialized.

   Thread* thread = Thread::Current();
   // TODO(koda): Should there be a StackZone here?
   Zone* zone = thread->zone();
@@ -5309,6 +5308,8 @@ void Parser::ParseTopLevelVariable(TopLevel* top_level,
       }
       SkipExpr();
       field.set_value(field_value);
+      field.set_has_initializer(true);
+
       if (!has_simple_literal) {
         // Create a static final getter.
         String& getter_name = String::Handle(Z, Field::GetterSymbol(var_name));