Fix enums defined in submodules

crates/backend/src/codegen.rs

@@ -763,7 +763,7 @@ impl ToTokens for ast::Enum {
                     _extra: &mut ::wasm_bindgen::convert::Stack,
                 ) -> Self {
                     #(#cast_clauses else)* {
-                        wasm_bindgen::throw("invalid enum value passed")
+                        ::wasm_bindgen::throw("invalid enum value passed")
                     }
                 }
             }

tests/all/enums.rs

@@ -52,12 +52,18 @@ fn c_style_enum_with_custom_values() {
 
             use wasm_bindgen::prelude::*;
 
+            pub mod inner {
+                use wasm_bindgen::prelude::*;
+
                 #[wasm_bindgen]
                 pub enum Color {
                     Green = 21,
                     Yellow = 34,
                     Red,
                 }
+            }
+
+            use inner::Color;
 
             #[wasm_bindgen]
             pub fn cycle(color: Color) -> Color {