C#: Update tests and test expected output.

Author: michaelnebel

csharp/ql/test/query-tests/Useless Code/IntGetHashCode/IntGetHashCode.cs

@@ -3,16 +3,16 @@ class IntGetHashCode
     void Test()
     {
         // These are all bad:
-        default(uint).GetHashCode(); // $ Alert
         default(int).GetHashCode(); // $ Alert
-        default(long).GetHashCode(); // $ Alert
-        default(ulong).GetHashCode(); // $ Alert
         default(short).GetHashCode(); // $ Alert
         default(ushort).GetHashCode(); // $ Alert
         default(byte).GetHashCode(); // $ Alert
         default(sbyte).GetHashCode(); // $ Alert
 
         // These are all good:
+        default(uint).GetHashCode();
+        default(long).GetHashCode();
+        default(ulong).GetHashCode();
         default(double).GetHashCode();
         default(float).GetHashCode();
         default(char).GetHashCode();

csharp/ql/test/query-tests/Useless Code/IntGetHashCode/IntGetHashCode.expected

@@ -1,8 +1,5 @@
-| IntGetHashCode.cs:6:9:6:35 | call to method GetHashCode | Calling GetHashCode() on type uint is redundant. |
-| IntGetHashCode.cs:7:9:7:34 | call to method GetHashCode | Calling GetHashCode() on type int is redundant. |
-| IntGetHashCode.cs:8:9:8:35 | call to method GetHashCode | Calling GetHashCode() on type long is redundant. |
-| IntGetHashCode.cs:9:9:9:36 | call to method GetHashCode | Calling GetHashCode() on type ulong is redundant. |
-| IntGetHashCode.cs:10:9:10:36 | call to method GetHashCode | Calling GetHashCode() on type short is redundant. |
-| IntGetHashCode.cs:11:9:11:37 | call to method GetHashCode | Calling GetHashCode() on type ushort is redundant. |
-| IntGetHashCode.cs:12:9:12:35 | call to method GetHashCode | Calling GetHashCode() on type byte is redundant. |
-| IntGetHashCode.cs:13:9:13:36 | call to method GetHashCode | Calling GetHashCode() on type sbyte is redundant. |
+| IntGetHashCode.cs:6:9:6:34 | call to method GetHashCode | Calling GetHashCode() on type int is redundant. |
+| IntGetHashCode.cs:7:9:7:36 | call to method GetHashCode | Calling GetHashCode() on type short is redundant. |
+| IntGetHashCode.cs:8:9:8:37 | call to method GetHashCode | Calling GetHashCode() on type ushort is redundant. |
+| IntGetHashCode.cs:9:9:9:35 | call to method GetHashCode | Calling GetHashCode() on type byte is redundant. |
+| IntGetHashCode.cs:10:9:10:36 | call to method GetHashCode | Calling GetHashCode() on type sbyte is redundant. |