feat: initial parallel impl

src/ty/internal/func.rs

@@ -5,11 +5,11 @@ use crate::env::VmEnv;
 use crate::ir;
 pub struct Func<'gc> {
     pub func: &'gc ir::Func,
-    pub env: Rc<VmEnv<'gc>>,
+    pub env: Rc<VmEnv>,
 }
 
 impl<'gc> Func<'gc> {
-    pub fn new(func: &'gc ir::Func, env: Rc<VmEnv<'gc>>) -> Self {
+    pub fn new(func: &'gc ir::Func, env: Rc<VmEnv>) -> Self {
         Self {
             func,
             env,