Test the checks directly, do not go through |PEG.buildParser|

test/checks-test.js

@@ -20,7 +20,10 @@ test("reports missing referenced rules", function() {
 
   for (var i = 0; i < grammars.length; i++) {
     throws(
-      function() { PEG.buildParser(grammars[i]); },
+      function() {
+        var ast = PEG.parser.parse(grammars[i]);
+        PEG.compiler.checks.missingReferencedRules(ast);
+      },
       PEG.GrammarError,
       { message: "Referenced rule \"missing\" does not exist." }
     );
@@ -48,7 +51,10 @@ test("reports left recursion", function() {
 
   for (var i = 0; i < grammars.length; i++) {
     throws(
-      function() { PEG.buildParser(grammars[i]); },
+      function() {
+        var ast = PEG.parser.parse(grammars[i]);
+        PEG.compiler.checks.leftRecursion(ast);
+      },
       PEG.GrammarError,
       { message: "Left recursion detected for rule \"start\"." }
     );