LibJS/JIT: Compile the NewRegExp bytecode instruction

Author: https://github.com/awesomekling
Commit: c1551a64dc
Pull-request: https://github.com/SerenityOS/serenity/pull/21619
Reviewed-by: https://github.com/Hendiadyoin1

Userland/Libraries/LibJS/Bytecode/CommonImplementations.h

@@ -30,5 +30,6 @@ struct CalleeAndThis {
     Value this_value;
 };
 ThrowCompletionOr<CalleeAndThis> get_callee_and_this_from_environment(Bytecode::Interpreter&, DeprecatedFlyString const& name, u32 cache_index);
+Value new_regexp(VM&, ParsedRegex const&, DeprecatedString const& pattern, DeprecatedString const& flags);
 
 }