convert AST_Seq from binary tree to array (#1460)

- rename `AST_Seq` to `AST_Sequence`
- raise default sequences_limit from 200 to 800

bin/extract-props.js

@@ -50,8 +50,8 @@ function getProps(filename) {
         try {
             (function walk(node){
                 node.walk(new U2.TreeWalker(function(node){
-                    if (node instanceof U2.AST_Seq) {
-                        walk(node.cdr);
+                    if (node instanceof U2.AST_Sequence) {
+                        walk(node.expressions[node.expressions.length - 1]);
                         return true;
                     }
                     if (node instanceof U2.AST_String) {

bin/uglifyjs

@@ -569,7 +569,7 @@ function getOptions(flag, constants) {
             }
         }
         ast.walk(new UglifyJS.TreeWalker(function(node){
-            if (node instanceof UglifyJS.AST_Seq) return; // descend
+            if (node instanceof UglifyJS.AST_Sequence) return; // descend
             if (node instanceof UglifyJS.AST_Assign) {
                 var name = node.left.print_to_string().replace(/-/g, "_");
                 var value = node.right;
@@ -583,7 +583,7 @@ function getOptions(flag, constants) {
                 ret[name] = true;
                 return true;    // no descend
             }
-            print_error(node.TYPE)
+            print_error(node.TYPE);
             print_error("Error parsing arguments for flag `" + flag + "': " + x);
             process.exit(1);
         }));