Fix JSHint errors

Fixes the following JSHint errors (which I think are JSHint bugs):

  spec/parser.spec.js: line 142, col 20, Bad for in variable 'key'.
  spec/generated-parser.spec.js: line 119, col 20, Bad for in variable 'key'.

spec/generated-parser.spec.js

@@ -91,7 +91,7 @@ describe("generated parser", function() {
           };
         }
 
-        var result, key;
+        var result;
 
         try {
           result = this.actual.parse(input, options);
@@ -106,6 +106,12 @@ describe("generated parser", function() {
 
           return false;
         } catch (e) {
+          /*
+           * Should be at the top level but then JSHint complains about bad for
+           * in variable.
+           */
+          var key;
+
           if (this.isNot) {
             this.message = function() {
               return "Expected " + jasmine.pp(input)

spec/parser.spec.js

@@ -118,7 +118,7 @@ describe("PEG.js grammar parser", function() {
           };
         }
 
-        var result, key;
+        var result;
 
         try {
           result = PEG.parser.parse(this.actual);
@@ -131,6 +131,12 @@ describe("PEG.js grammar parser", function() {
 
           return false;
         } catch (e) {
+          /*
+           * Should be at the top level but then JSHint complains about bad for
+           * in variable.
+           */
+          var key;
+
           if (this.isNot) {
             this.message = function() {
               return "Expected " + jasmine.pp(this.actual) + " to parse, "