Hook up debug to the CLI

crates/wasm-bindgen-cli/src/main.rs

@@ -19,6 +19,7 @@ Options:
     --output-ts FILE        Output TypeScript file
     --output-wasm FILE      Output WASM file
     --nodejs                Generate output for node.js, not the browser
+    --debug                 Include otherwise-extraneous debug checks in output
 ";
 
 #[derive(Debug, Deserialize)]
@@ -26,6 +27,7 @@ struct Args {
     flag_output_ts: Option<PathBuf>,
     flag_output_wasm: Option<PathBuf>,
     flag_nodejs: bool,
+    flag_debug: bool,
     arg_input: PathBuf,
 }
 
@@ -37,6 +39,7 @@ fn main() {
     let mut b = Bindgen::new();
     b.input_path(&args.arg_input);
     b.nodejs(args.flag_nodejs);
+    b.debug(args.flag_debug);
     let ret = b.generate().expect("failed to generate bindings");
     if let Some(ref ts) = args.flag_output_ts {
         ret.write_ts_to(ts).expect("failed to write TypeScript output file");