Pass arguments.

src/function_body.rs

@@ -219,15 +219,12 @@ pub fn translate(
             }
             Operator::Call { function_index } => {
                 let callee_ty = translation_ctx.func_type(function_index);
-                assert!(callee_ty.params.len() == 0, "is not supported");
                 assert!(callee_ty.returns.len() == 0, "is not supported");
 
                 // TODO: ensure that this function is locally defined
                 // We would like to support imported functions at some point
 
-                // TODO: pop arguments and move them in appropriate positions.
-                // only 6 for now.
-
+                pass_outgoing_args(&mut ctx, callee_ty.params.len() as u32);
                 call_direct(&mut ctx, function_index);
             }
             _ => {