Don't emit warning in env.fork().
Set the underlying property directly rather than using the property
method that emits a warning.
@@ -221,7 +221,7 @@ class LlvmEnv(CompilerEnv):
# Now that we have initialized the environment with the current state,
# set the benchmark so that calls to new_env.reset() will correctly
# revert the environment to the initial benchmark state.
- new_env.benchmark = self.benchmark
+ new_env.__user_specified_benchmark_uri = self.benchmark
# Set the "visible" name of the current benchmark to hide the fact that
# we loaded from a custom bitcode file.
new_env._benchmark_in_use_uri = self.benchmark
