Clean up a bunch of spec global variable leaks

Also some formatting changes to highlight when using one 'var' with comma operator

spec/core/matchers/toBeGreaterThanSpec.js

@@ -8,7 +8,8 @@ describe("toBeGreaterThan", function() {
   });
 
   it("fails when actual <= expected", function() {
-    var matcher = j$.matchers.toBeGreaterThan();
+    var matcher = j$.matchers.toBeGreaterThan(),
+      result;
 
     result = matcher.compare(1, 1);
     expect(result.pass).toBe(false);

spec/core/matchers/toBeNaNSpec.js

@@ -9,7 +9,8 @@ describe("toBeNaN", function() {
   });
 
   it("fails for anything not a NaN", function() {
-    var matcher = j$.matchers.toBeNaN();
+    var matcher = j$.matchers.toBeNaN(),
+      result;
 
     result = matcher.compare(1);
     expect(result.pass).toBe(false);

spec/core/matchers/toBeUndefinedSpec.js

@@ -9,7 +9,8 @@ describe("toBeUndefined", function() {
   });
 
   it("fails when matching defined values", function() {
-    var matcher = j$.matchers.toBeUndefined();
+    var matcher = j$.matchers.toBeUndefined(),
+      result;
 
     result = matcher.compare('foo');
     expect(result.pass).toBe(false);

spec/core/matchers/toContainSpec.js

@@ -3,7 +3,8 @@ describe("toContain", function() {
     var util = {
         contains: jasmine.createSpy('delegated-contains').and.returnValue(true)
       },
-      matcher = j$.matchers.toContain(util);
+      matcher = j$.matchers.toContain(util),
+      result;
 
     result = matcher.compare("ABC", "B");
     expect(util.contains).toHaveBeenCalledWith("ABC", "B", []);
@@ -15,7 +16,8 @@ describe("toContain", function() {
         contains: jasmine.createSpy('delegated-contains').and.returnValue(true)
       },
       customEqualityTesters = ['a', 'b'],
-      matcher = j$.matchers.toContain(util, customEqualityTesters);
+      matcher = j$.matchers.toContain(util, customEqualityTesters),
+      result;
 
     result = matcher.compare("ABC", "B");
     expect(util.contains).toHaveBeenCalledWith("ABC", "B", ['a', 'b']);

spec/core/matchers/toHaveBeenCalledSpec.js

@@ -13,7 +13,8 @@ describe("toHaveBeenCalled", function() {
 
   it("fails when the actual was not called", function() {
     var matcher = j$.matchers.toHaveBeenCalled(),
-      uncalledSpy = j$.createSpy('uncalled spy');
+      uncalledSpy = j$.createSpy('uncalled spy'),
+      result;
 
     result = matcher.compare(uncalledSpy);
     expect(result.pass).toBe(false);