LibJS: Convert a RegExp throw_exception to throw_completion

RegExpExec already returns a ThrowCompletionOr so this potentional error
should be a completion. RegExp.prototype [ @@replace ] is tripped up by
this mistake when implemented closer to the spec.

1 files changed, 1 insertions, 1 deletions

diff --git a/Userland/Libraries/LibJS/Runtime/RegExpPrototype.cpp b/Userland/Libraries/LibJS/Runtime/RegExpPrototype.cpp
index 4b091e585e..c5bf50f21b 100644
--- a/Userland/Libraries/LibJS/Runtime/RegExpPrototype.cpp
+++ b/Userland/Libraries/LibJS/Runtime/RegExpPrototype.cpp
@@ -257,7 +257,7 @@ ThrowCompletionOr<Value> regexp_exec(GlobalObject& global_object, Object& regexp
         auto result = TRY(vm.call(exec.as_function(), &regexp_object, js_string(vm, move(string))));
 
         if (!result.is_object() && !result.is_null())
-            vm.throw_exception<TypeError>(global_object, ErrorType::NotAnObjectOrNull, result.to_string_without_side_effects());
+            return vm.throw_completion<TypeError>(global_object, ErrorType::NotAnObjectOrNull, result.to_string_without_side_effects());
 
         return result;
     }