Fix RowValue which can reference an invalid Ok that defined outside

Update tests/procmacro.rs

Fix lint attribute

Author: importcjj

oracle_procmacro/src/lib.rs

@@ -71,7 +71,7 @@ pub fn derive_row_value(input: TokenStream) -> TokenStream {
                 let result = #ident {
                     #(#fields)*
                 };
-                Ok(result)
+                ::std::result::Result::Ok(result)
             }
         }
     };

tests/procmacro.rs

@@ -0,0 +1,16 @@
+use oracle::RowValue;
+
+#[test]
+fn procmacro_ok_shadow() {
+    #[allow(dead_code)]
+    enum AnotherResult<T, E> {
+        Ok(T),
+        Err(E),
+    }
+
+    #[allow(unused_imports)]
+    use AnotherResult::Ok;
+
+    #[derive(Debug, RowValue)]
+    struct Foo {}
+}