Also check custom properties on Arrays when computing equality

[Finishes #50616649]

lib/jasmine-core/jasmine.js

@@ -2301,17 +2301,12 @@ getJasmineRequireObj().matchersUtil = function(j$) {
     bStack.push(b);
     var size = 0;
     // Recursively compare objects and arrays.
-    if (className == '[object Array]') {
-      // Compare array lengths to determine if a deep comparison is necessary.
-      size = a.length;
-      result = size == b.length;
-      if (result) {
-        // Deep compare the contents, ignoring non-numeric properties.
-        while (size--) {
-          if (!(result = eq(a[size], b[size], aStack, bStack, customTesters))) { break; }
-        }
-      }
-    } else {
+    // Compare array lengths to determine if a deep comparison is necessary.
+    if (className == '[object Array]' && a.length !== b.length) {
+      result = false;
+    }
+
+    if (result) {
       // Objects with different constructors are not equivalent, but `Object`s
       // from different frames are.
       var aCtor = a.constructor, bCtor = b.constructor;