Create a new symbol for methods' names

lib/ast.js

@@ -991,6 +991,10 @@ var AST_SymbolDefun = DEFNODE("SymbolDefun", null, {
     $documentation: "Symbol defining a function",
 }, AST_SymbolDeclaration);
 
+var AST_SymbolMethod = DEFNODE("SymbolMethod", null, {
+    $documentation: "Symbol in an object defining a method",
+}, AST_Symbol);
+
 var AST_SymbolLambda = DEFNODE("SymbolLambda", null, {
     $documentation: "Symbol naming a function expression",
 }, AST_SymbolDeclaration);

lib/parse.js

@@ -1449,7 +1449,7 @@ function parse($TEXT, options) {
                 if (is("punc", "(")) {
                     a.push(new AST_ConciseMethod({
                         start    : start,
-                        name     : new AST_Symbol({ name: name }),  // TODO what symbol is this really?
+                        name     : new AST_SymbolMethod({ name: name }),
                         argnames : params_or_seq_().as_params(croak),
                         body     : _function_body(true),
                         end      : prev()