Add trim_end_proc_mark

compiler/erg_parser/ast.rs

@@ -2295,6 +2295,13 @@ impl VarName {
     pub const fn inspect(&self) -> &Str {
         &self.0.content
     }
+
+    /// Remove `!` from the end of the identifier.
+    /// Procedures defined in `d.er` automatically register the name without `!` as `py_name`.
+    /// This method is for undoing it (e.g. pylyzer-mode)
+    pub fn trim_end_proc_mark(&mut self) {
+        let _ = self.0.content.trim_end_matches('!');
+    }
 }
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
@@ -2378,6 +2385,10 @@ impl Identifier {
     pub fn is_procedural(&self) -> bool {
         self.name.is_procedural()
     }
+
+    pub fn trim_end_proc_mark(&mut self) {
+        self.name.trim_end_proc_mark();
+    }
 }
 
 #[derive(Clone, Debug, PartialEq, Eq, Hash)]