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

@@ -52,13 +52,19 @@ fn c_style_enum_with_custom_values() {
 
             use wasm_bindgen::prelude::*;
 
-            #[wasm_bindgen]
-            pub enum Color {
-                Green = 21,
-                Yellow = 34,
-                Red,
+            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 {
                 match color {