implement AST validation (#3863)

test/benchmark.js

@@ -8,9 +8,9 @@ var fetch = require("./fetch");
 var spawn = require("child_process").spawn;
 var zlib = require("zlib");
 var args = process.argv.slice(2);
-args.unshift("bin/uglifyjs");
 if (!args.length) args.push("-mc");
-args.push("--timings");
+args.unshift("bin/uglifyjs");
+args.push("--validate", "--timings");
 var urls = [
     "https://code.jquery.com/jquery-3.4.1.js",
     "https://code.angularjs.org/1.7.8/angular.js",

test/compress.js

@@ -14,6 +14,7 @@ var file = process.argv[2];
 var dir = path.resolve(path.dirname(module.filename), "compress");
 if (file) {
     var minify_options = require("./ufuzz/options.json").map(JSON.stringify);
+    U.AST_Node.enable_validation();
     log("--- {file}", { file: file });
     var tests = parse_test(path.resolve(dir, file));
     process.exit(Object.keys(tests).filter(function(name) {

test/jetstream.js

@@ -14,9 +14,9 @@ if (typeof phantom == "undefined") {
         args.splice(debug, 1);
         debug = true;
     }
-    args.unshift("bin/uglifyjs");
     if (!args.length) args.push("-mcb", "beautify=false,webkit");
-    args.push("--timings");
+    args.unshift("bin/uglifyjs");
+    args.push("--validate", "--timings");
     var child_process = require("child_process");
     var fetch = require("./fetch");
     var http = require("http");