FIX: Bug in dot_lookups

curr_val forms the basis of the scope search but it shouldn't be part of the
lookup expression for the field.

integration_tests/types_test.ucg

@@ -60,4 +60,11 @@ assert t.ok{
 assert t.not_ok{
     test = foo_check({bar="foo"}),
     desc = "we can check for absent foo string fields",
+};
+
+let test_for_field = func(name, tpl) => (name) in tpl;
+
+assert t.ok{
+    test = test_for_field("name", {name="foo"}),
+    desc = "bareword collisions with field names still works for `in` operator",
 };

src/build/mod.rs

@@ -852,7 +852,10 @@ impl<'a> FileBuilder<'a> {
                 scope.lookup_idx(right.pos(), &Val::Int(i.val))
             }
             _ => {
-                let val = self.eval_expr(right, &scope)?;
+                // We need to clear any curr_vals for the eval so we don't include them
+                // in the scope for dot lookups.
+                let eval_scope = scope.spawn_child();
+                let val = self.eval_expr(right, &eval_scope)?;
                 match val.as_ref() {
                     Val::Int(i) => scope.lookup_idx(right.pos(), &Val::Int(*i)),
                     Val::Str(ref s) => scope