hotwire haku2 into rkgk

really a bodge job right now and it crashes but it's a start

crates/haku/src/bytecode.rs

@@ -306,6 +306,24 @@ impl Defs {
             panic!("image must be a subset of the current defs")
         });
     }
+
+    pub fn serialize_defs(&self) -> String {
+        let mut result = String::new();
+        for def in &self.defs {
+            result.push_str(def);
+            result.push('\n');
+        }
+        result
+    }
+
+    pub fn serialize_tags(&self) -> String {
+        let mut result = String::new();
+        for tag in &self.tags {
+            result.push_str(tag);
+            result.push('\n');
+        }
+        result
+    }
 }
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]

crates/haku/src/compiler.rs

@@ -47,7 +47,7 @@ pub struct Compiler<'a> {
 
 #[derive(Debug, Clone, Copy)]
 pub struct ClosureSpec {
-    pub(crate) local_count: u8,
+    pub local_count: u8,
 }
 
 impl<'a> Compiler<'a> {