fix #393, add one more test for the fix of 385

Author: simondud

src/JS.php

@@ -209,14 +209,18 @@ protected function stripComments()
                 $placeholder = '/*'.$count.'*/';
                 $minifier->extracted[$placeholder] = $match[0];
 
-                return $placeholder;
+                return $placeholder . ($match[3] ? $match[2] . $match[3] : '');
+            }
+            // should not remove the \n before a var|let etc. at this stage, because it could be a case like this: var a=1\n/*comment*/\nvar b=2;
+            if($match[3]) {
+                return $match[2] . $match[3];
             }
 
             return '';
         };
 
         // multi-line comments
-        $this->registerPattern('/\n?\/\*(.*?)\*\/\n?/s', $callback);
+        $this->registerPattern('/\n?\/\*(.*?)\*\/(\n?)(var|let|const|enum|function|class|)/s', $callback);
 
         // single-line comments
         $this->registerPattern('/\/\/.*$/m', '');

tests/js/JSTest.php

@@ -1316,6 +1316,11 @@ function someOtherFunction() {
             'if (l !== 3) { for (var V = w.map(function(e) { if(e > 5) { return e-5; } return e; }).length; l < V; V++); } else var C = 3;',
             'if(l!==3){for(var V=w.map(function(e){if(e>5){return e-5}return e}).length;l<V;V++);}else var C=3'
         );
+        $tests[] = array(
+            'if(l!==3){for(var V=w.length;V < w.map( function(e) { if(e>5){return e-5; }return e; }).length; l++ );}else var C=3;',
+            'if(l!==3){for(var V=w.length;V<w.map(function(e){if(e>5){return e-5}return e}).length;l++);}else var C=3'
+        );
+
         $tests[] = array(
             'if (l !== 3) { for (var V = w.length; l < V; V+=w.map(function(e) { if(e > 5) { return e-5; } return e; }).length); } else var C = 3;',
             'if(l!==3){for(var V=w.length;l<V;V+=w.map(function(e){if(e>5){return e-5}return e}).length);}else var C=3'
@@ -1331,6 +1336,15 @@ function someOtherFunction() {
             'jQuery(document).ready(function(e){if(jQuery(document.body).on("updated_wc_div",o),jQuery(document.body).on("updated_cart_totals",o));})',
         );
 
+        // https://github.com/matthiasmullie/minify/issues/393
+        $tests[] = array(
+            'var crypt=function() {}
+/* some comment */
+var Sbox = 2',
+            'var crypt=function(){}
+var Sbox=2',
+        );
+
         // known minified files to help doublecheck changes in places not yet
         // anticipated in these tests
         $files = glob(__DIR__.'/sample/minified/*.js');
@@ -1346,6 +1360,7 @@ function someOtherFunction() {
         }
 
         //some other files that are minified correctly, ensure they stay like this
+        // https://github.com/matthiasmullie/minify/issues/393
         $source = trim(file_get_contents(__DIR__.'/sample/source/Decrypt.js'));
         $minified = trim(file_get_contents(__DIR__.'/sample/minified2/Decrypt.min.js'));
         $tests[] = array($source, $minified);