mangle class names

lib/scope.js

@@ -155,6 +155,14 @@ AST_Toplevel.DEFMETHOD("figure_out_scope", function(options){
             // later.
             (node.scope = defun.parent_scope).def_function(node);
         }
+        else if (node instanceof AST_SymbolClass) {
+            defun.def_variable(node);
+        }
+        else if (node instanceof AST_SymbolDefClass) {
+            // This deals with the name of the class being available
+            // inside the class.
+            (node.scope = defun.parent_scope).def_function(node);
+        }
         else if (node instanceof AST_SymbolVar
                  || node instanceof AST_SymbolConst) {
             var def = defun.def_variable(node);
@@ -171,6 +179,7 @@ AST_Toplevel.DEFMETHOD("figure_out_scope", function(options){
 
     // pass 2: find back references and eval
     var func = null;
+    var cls = null;
     var globals = self.globals = new Dictionary();
     var tw = new TreeWalker(function(node, descend){
         if (node instanceof AST_Lambda) {
@@ -180,6 +189,13 @@ AST_Toplevel.DEFMETHOD("figure_out_scope", function(options){
             func = prev_func;
             return true;
         }
+        if (node instanceof AST_Class) {
+            var prev_cls = cls;
+            cls = node;
+            descend();
+            cls = prev_cls;
+            return true;
+        }
         if (node instanceof AST_SymbolRef) {
             var name = node.name;
             var sym = node.scope.find_variable(name);

test/compress/harmony.js

@@ -214,6 +214,25 @@ class_statics: {
     expect_exact: "x=class{static staticMethod(){}static get foo(){}static set bar(){}static(){}get(){}set(){}};"
 }
 
+class_name_can_be_mangled: {
+    mangle = { };
+    input: {
+        function x() {
+            class Foo {
+            }
+            var class1 = Foo
+            var class2 = class Bar {}
+        }
+    }
+    expect: {
+        function x() {
+            class a { }
+            var b = a
+            var c = class a {}
+        }
+    }
+}
+
 number_literals: {
     input: {
         0b1001;