Ignore branches tested without coverage monitoring

lib/handlebars/compiler/code-gen.js

@@ -3,6 +3,7 @@ import {isArray} from "../utils";
 var SourceNode;
 
 try {
+  /* istanbul ignore next */
   if (typeof define !== 'function' || !define.amd) {
     // We don't support this in AMD environments. For these environments, we asusme that
     // they are running on the browser and thus have no need for the source-map library.
@@ -13,8 +14,8 @@ try {
   /* NOP */
 }
 
+/* istanbul ignore if: tested but not covered in istanbul due to dist build  */
 if (!SourceNode) {
-  /* istanbul ignore next: tested but not covered in istanbul due to dist build  */
   SourceNode = function(line, column, srcFile, chunks) {
     this.src = '';
     if (chunks) {