Rename |reportMissingReferencedRules| check to |reportMissingRules|

The new name is shorter, there is no real loss of meaning.

src/checks.js

@@ -8,7 +8,7 @@
  */
 PEG.compiler.checks = {
   /* Checks that all referenced rules exist. */
-  reportMissingReferencedRules: function(ast) {
+  reportMissingRules: function(ast) {
     function nop() {}
 
     function checkExpression(node) { check(node.expression); }

src/compiler.js

@@ -7,7 +7,7 @@ PEG.compiler = {
    */
   compile: function(ast) {
     var CHECK_NAMES = [
-      "reportMissingReferencedRules",
+      "reportMissingRules",
       "reportLeftRecursion"
     ];
 

test/checks-test.js

@@ -7,7 +7,7 @@ test("reports missing referenced rules", function() {
     raises(
       function() {
         var ast = PEG.parser.parse(grammar);
-        PEG.compiler.checks.reportMissingReferencedRules(ast);
+        PEG.compiler.checks.reportMissingRules(ast);
       },
       function(e) {
         return e instanceof PEG.GrammarError