Change parameter name.

src/packages/array_basic.rs

@@ -69,7 +69,7 @@ mod array_functions {
     }
     #[rhai_fn(return_raw)]
     pub fn pad(
-        _ctx: NativeCallContext,
+        ctx: NativeCallContext,
         array: &mut Array,
         len: INT,
         item: Dynamic,
@@ -78,6 +78,8 @@ mod array_functions {
             return Ok(());
         }
 
+        let _ctx = ctx;
+
         // Check if array will be over max size limit
         #[cfg(not(feature = "unchecked"))]
         if _ctx.engine().max_array_size() > 0 && (len as usize) > _ctx.engine().max_array_size() {