Simplify inverse only block case

dist/handlebars.js

@@ -205,7 +205,7 @@ case 4:this.$ = new yy.ProgramNode($$[$0-1], []);
 break;
 case 5:this.$ = new yy.ProgramNode($$[$0]);
 break;
-case 6:this.$ = new yy.ProgramNode([], []);
+case 6:this.$ = new yy.ProgramNode([]);
 break;
 case 7:this.$ = new yy.ProgramNode([]);
 break;

spec/parser.js

@@ -108,11 +108,11 @@ describe('parser', function() {
   });
 
   it('parses empty blocks with empty inverse section', function() {
-    ast_for("{{#foo}}{{^}}{{/foo}}").should.equal("BLOCK:\n  {{ ID:foo [] }}\n  PROGRAM:\n  {{^}}\n");
+    ast_for("{{#foo}}{{^}}{{/foo}}").should.equal("BLOCK:\n  {{ ID:foo [] }}\n  PROGRAM:\n");
   });
 
   it('parses empty blocks with empty inverse (else-style) section', function() {
-    ast_for("{{#foo}}{{else}}{{/foo}}").should.equal("BLOCK:\n  {{ ID:foo [] }}\n  PROGRAM:\n  {{^}}\n");
+    ast_for("{{#foo}}{{else}}{{/foo}}").should.equal("BLOCK:\n  {{ ID:foo [] }}\n  PROGRAM:\n");
   });
 
   it('parses non-empty blocks with empty inverse section', function() {

src/handlebars.yy

@@ -13,7 +13,7 @@ program
   | statements simpleInverse statements -> new yy.ProgramNode($1, $3)
   | statements simpleInverse -> new yy.ProgramNode($1, [])
   | statements -> new yy.ProgramNode($1)
-  | simpleInverse -> new yy.ProgramNode([], [])
+  | simpleInverse -> new yy.ProgramNode([])
   | "" -> new yy.ProgramNode([])
   ;