Replaced uses of var with const/let

src/core/matchers/requireMatchers.js

@@ -1,5 +1,5 @@
 getJasmineRequireObj().requireMatchers = function(jRequire, j$) {
-  var availableMatchers = [
+  const availableMatchers = [
       'nothing',
       'toBe',
       'toBeCloseTo',
@@ -35,8 +35,7 @@ getJasmineRequireObj().requireMatchers = function(jRequire, j$) {
     ],
     matchers = {};
 
-  for (var i = 0; i < availableMatchers.length; i++) {
-    var name = availableMatchers[i];
+  for (const name of availableMatchers) {
     matchers[name] = jRequire[name](j$);
   }