some minor restructuring

lib/src/stdlib/primordials.ts

@@ -72,7 +72,7 @@ export interface BufferPrimordials {
 export interface FunctionPrimordials {
 	invokeType(args: IArguments, self: any): "new" | "call";
 	invokeTypeInfer(): "new" | "call";
-	target(): Function | null | undefined;
+	target(level?: number): Function | null | undefined;
 	setConstructable(func: Function, flag: boolean): void;
 	setCallable(func: Function, flag: boolean): void;
 	invoke(func: Function, self: any, args: any[]): any;

lib/src/stdlib/values/function.ts

@@ -58,6 +58,10 @@ export const Function = (() => {
 		public static compile(src: string, filename?: string) {
 			return compile(String(src), filename);
 		}
+
+		public static newTarget() {
+			return func.target(1);
+		}
 	}
 
 	func.setCallable(Function, true);