Prevent early .end statements

Prevent a missmatch on .end{macro,proc,scope}. This was more or less
already covered when there was a bad context_pop call, but it was prone
to errors.

Check this in eval_context as it should've always been done.

Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/xixanta/src/errors.rs b/lib/xixanta/src/errors.rs
index 63f925e..84fca6a 100644
--- a/lib/xixanta/src/errors.rs
+++ b/lib/xixanta/src/errors.rs
@@ -38,6 +38,7 @@ pub enum ContextErrorReason {
     BadScope,
     Label,
     Bounds,
+    BadEnd,
     Other,
 }