baml-language: implement new PPIR

baml-language: ppir fixes

Author: sxlijin

baml_language/crates/baml_base/src/attr.rs

@@ -52,3 +52,20 @@ pub struct TyAttr {
     /// not yet complete).
     pub sap_in_progress_never: TyAttrValue,
 }
+
+impl TyAttr {
+    /// Return the SAP attribute names that are set on this type.
+    pub fn attr_names(&self) -> Vec<&'static str> {
+        let mut names = Vec::new();
+        if self.sap_parse_without_null == TyAttrValue::Set {
+            names.push("sap.parse_without_null");
+        }
+        if self.sap_pending_never == TyAttrValue::Set {
+            names.push("sap.pending_never");
+        }
+        if self.sap_in_progress_never == TyAttrValue::Set {
+            names.push("sap.in_progress_never");
+        }
+        names
+    }
+}