Separate out rust parsing step to support references to values stored in the parsed state.

src/wasm/plain_list.rs

@@ -10,7 +10,7 @@ use crate::wasm::WasmAstNode;
 #[derive(Debug, Serialize)]
 #[serde(tag = "ast_node")]
 #[serde(rename = "org-data")]
-pub(crate) struct WasmPlainList<'s, 'p> {
+pub struct WasmPlainList<'s, 'p> {
     standard_properties: WasmStandardProperties,
     children: Vec<WasmAstNode<'s, 'p>>,
 }