message: Fix build of metering_benchmark with the llvm backend.
diff: @@ -135,10 +135,9 @@ static WAT_GAS: &'static str = r#"
  #[cfg(feature = "llvm")]
  fn get_compiler(limit: u64, metering: bool) -> impl Compiler {
  - use wasmer_llvm_backend::code::LLVMModuleCodeGenerator;
  + use wasmer_llvm_backend::ModuleCodeGenerator;
  use wasmer_runtime_core::codegen::{MiddlewareChain, StreamingCompiler};
  - let c: StreamingCompiler<LLVMModuleCodeGenerator, _, _, _, _> =
  - StreamingCompiler::new(move || {
  + let c: StreamingCompiler<ModuleCodeGenerator, _, _, _, _> = StreamingCompiler::new(move || {
  let mut chain = MiddlewareChain::new();
  if metering {
  chain.push(Metering::new(limit));
  