pick up preexisting new function in KissInterp2 class

src/kiss/KissInterp2.hx

@@ -11,9 +11,22 @@ class KissInterp2 {
 	public static function build():Array<Field> {
 		var fields = Kiss.build(Prelude.joinPath(Helpers.libPath("kiss"), "src/kiss/KissInterp2.kiss"));
 		
+		var preexistingNewBody = macro {};
+		for(field in fields) {
+			if(field.name == "new") {
+				switch(field.kind) {
+					case FFun(fun):
+						preexistingNewBody = fun.expr;
+					default:
+				}
+				fields.remove(field);
+			}
+		}
+
 		// TODO put imported types into the global variables interp
 
 		var imports = Context.getLocalImports();
+
 		fields.push({
 			pos: Context.currentPos(),
 			name: "new",
@@ -24,6 +37,7 @@ class KissInterp2 {
 				args: [],
 				expr: macro {
 					specialForms = _specialForms();
+					$preexistingNewBody;
 				}
 			})
 		});