[TIMOB-24736] Fix issue in minification of code

lib/jsanalyze.js

@@ -163,10 +163,23 @@ exports.analyzeJs = function analyzeJs(contents, opts) {
 	// minify
 	if (opts.minify) {
 		// FIXME we can't re-use the ast here, because we traversed it
-		var minified = babel.transform(contents, {filename: opts.filename, minified: true, compact: true, comments: false, presets: [babili]});
+		var minified = babel.transform(contents, {
+			filename: opts.filename,
+			minified: true,
+			compact: true,
+			comments: false,
+			presets: [
+				{
+					plugins: [
+						require("babel-plugin-minify-numeric-literals"),
+						require("babel-plugin-minify-constant-folding"),
+						require("babel-plugin-minify-dead-code-elimination")
+					]
+				}
+			]
+		});
 		results.contents = minified.code;
 	}
-
 	return results;
 };