Style updates

Update style and remove some commented code

lib/propmangle.js

@@ -84,7 +84,7 @@ function mangle_properties(ast, options) {
         only_cache : false,
         regex : null,
         ignore_quoted : false,
-        treat_as_global : []
+        treat_as_global : [],
     });
 
     var reserved = options.reserved;
@@ -116,10 +116,6 @@ function mangle_properties(ast, options) {
         return treat_as_global.indexOf(name) >= 0;
     }
 
-    // TODO: don't know if this is necessary to get scope information?
-    //if (mangle_globals)
-    //    ast.figure_out_scope();
-
     // step 1: find candidates to mangle
     ast.walk(new TreeWalker(function(node){
         if (node instanceof AST_ObjectKeyVal) {
@@ -138,8 +134,7 @@ function mangle_properties(ast, options) {
                 node.expression instanceof AST_SymbolRef &&
                 node.expression.global() &&
                 is_global_alias(node.expression.name) &&
-                !is_global_alias(node.property))
-            {
+                !is_global_alias(node.property)) {
                 cache.global_defs[node.property] = true;
             }
         }
@@ -154,8 +149,7 @@ function mangle_properties(ast, options) {
             // be a local variable in scope), also treat it as a global definition.
             if (mangle_globals &&
                 node.global() &&
-                !is_global_alias(node.name))
-            {
+                !is_global_alias(node.name)) {
                 cache.global_defs[node.name] = true;
             }
         }
@@ -188,8 +182,7 @@ function mangle_properties(ast, options) {
             // and it's on our list of global definitions, then mangle it.
             if (mangle_globals &&
                 node.global() &&
-                node.name in cache.global_defs)
-            {
+                node.name in cache.global_defs) {
                 var mangled_name = mangle(node.name);
                 node.name = mangled_name;
                 node.definition().mangled_name = mangled_name;