Fix broken test code.

Author: BillWagner

standard/patterns.md

@@ -644,11 +644,11 @@ When a *pattern* appears on the right-hand-side of `is`, the extent of the patte
 > bool flag = true;
 > 
 > // This is parsed as: (msg is (not int) or string)
-> result = msg is not int or string;
+> bool result = msg is not int or string;
 > Console.WriteLine($"msg (\"msg\"): msg is not int or string: {result}");
 >
 > // This is parsed as: (obj is (int or string)) && flag
-> bool result = obj is int or string && flag;
+> result = obj is int or string && flag;
 > Console.WriteLine($"obj (5), flag (true): obj is int or string && flag: {result}");
 > 
 > // This is parsed as: (obj is int) || ((obj is string) && flag)
@@ -675,7 +675,6 @@ When a *pattern* appears on the right-hand-side of `is`, the extent of the patte
 > obj (5), flag (false): obj is int || obj is string && flag: True
 > ```
 >
->
 > *end example*
 
 ## 11.3 Pattern subsumption