Add back variable assignment at declaration time

example/src/main.nub

@@ -1,31 +1,29 @@
 namespace main
 
-// struct Name {
-//     first: cstring
-//     last: cstring
-// }
+struct Name {
+    first: cstring
+    last: cstring
+}
 
-// struct Human
-// {
-//     name: Name
-//     age: i64
-// }
+struct Human
+{
+    name: Name
+    age: i64
+}
 
 export func main(args: []cstring): i64
 {
-    // let x: Human
+    let x: Human = alloc Human
+    {
+        name = alloc Name
+        {
+            first = "john"
+            last = "doe"
+        }
+        age = 23
+    }
 
-    // x = alloc Human {
-    //     name = alloc Name {
-    //         first = "john"
-    //         last = "doe"
-    //     }
-    //     age = 23
-    // }
-
-    // c::puts(x.name.last)
-
-    c::puts("test")
+    c::puts(x.name.last)
 
     return 0
 }