feat(parser): parse OVERLOAD prefix on FUNCTION and PROCEDURE

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/Lexer/Lexer.cc b/lib/Lexer/Lexer.cc
index 44d40e5..9956cd9 100644
--- a/lib/Lexer/Lexer.cc
+++ b/lib/Lexer/Lexer.cc
@@ -130,6 +130,7 @@ int Lexer::readToken() {
         if (IdentifierStr == "OR") return tok_or;
         if (IdentifierStr == "NOT") return tok_not;
 
+        if (IdentifierStr == "OVERLOAD") return tok_overload;
         if (IdentifierStr == "FUNCTION") return tok_function;
         if (IdentifierStr == "ENDFUNCTION") return tok_endfunction;
         if (IdentifierStr == "PROCEDURE") return tok_procedure;