feat(regular_expression): detect regex pattern modifiers usage

crates/oxc_regular_expression/src/ast_impl/support.rs

@@ -7,6 +7,7 @@ pub struct RegexUnsupportedPatterns {
     pub named_capture_groups: bool,
     pub unicode_property_escapes: bool,
     pub look_behind_assertions: bool,
+    pub pattern_modifiers: bool,
 }
 
 /// Check if the regular expression contains any unsupported syntax.
@@ -62,7 +63,12 @@ fn term_contains_unsupported(term: &Term, unsupported: &RegexUnsupportedPatterns
             }
             disjunction_contains_unsupported(&group.body, unsupported)
         }
-        Term::IgnoreGroup(group) => disjunction_contains_unsupported(&group.body, unsupported),
+        Term::IgnoreGroup(group) => {
+            if group.modifiers.is_some() && unsupported.pattern_modifiers {
+                return true;
+            }
+            disjunction_contains_unsupported(&group.body, unsupported)
+        }
         _ => false,
     }
 }

crates/oxc_transformer/src/regexp/mod.rs

@@ -107,6 +107,7 @@ impl<'a, 'ctx> RegExp<'a, 'ctx> {
                 look_behind_assertions,
                 named_capture_groups,
                 unicode_property_escapes,
+                pattern_modifiers: false,
             },
         }
     }