Use accept for all compiler traversal

lib/handlebars/compiler/compiler.js

@@ -72,6 +72,7 @@ Compiler.prototype = {
   guid: 0,
 
   compile: function(program, options) {
+    this.opcodes = [];
     this.children = [];
     this.depths = {list: []};
     this.options = options;
@@ -93,7 +94,7 @@ Compiler.prototype = {
       }
     }
 
-    return this.program(program);
+    return this.accept(program);
   },
 
   accept: function(node) {
@@ -102,11 +103,9 @@ Compiler.prototype = {
 
   program: function(program) {
     var statements = program.statements, statement;
-    this.opcodes = [];
 
     for(var i=0, l=statements.length; i<l; i++) {
-      statement = statements[i];
-      this[statement.type](statement);
+      this.accept(statements[i]);
     }
     this.isSimple = l === 1;