C#: Introduce test cases and expected result for unsigned right shift.

Author: michaelnebel

csharp/ql/test/library-tests/csharp11/Operators.cs

@@ -0,0 +1,15 @@
+
+public class MyClass
+{
+    public void M1()
+    {
+        var x1 = 1;
+        var x2 = x1 >>> 2;
+
+        var y1 = -2;
+        var y2 = y1 >>> 3;
+
+        var z = -4;
+        z >>>= 5;
+    }
+}

csharp/ql/test/library-tests/csharp11/operators.expected

@@ -0,0 +1,6 @@
+binarybitwise
+| Operators.cs:7:18:7:25 | ... >>> ... | Operators.cs:7:18:7:19 | access to local variable x1 | Operators.cs:7:25:7:25 | 2 | >>> | UnsignedRightShiftExpr |
+| Operators.cs:10:18:10:25 | ... >>> ... | Operators.cs:10:18:10:19 | access to local variable y1 | Operators.cs:10:25:10:25 | 3 | >>> | UnsignedRightShiftExpr |
+| Operators.cs:13:9:13:16 | ... >>> ... | Operators.cs:13:9:13:9 | access to local variable z | Operators.cs:13:16:13:16 | 5 | >>> | UnsignedRightShiftExpr |
+assignbitwise
+| Operators.cs:13:9:13:16 | ... >>>= ... | Operators.cs:13:9:13:9 | access to local variable z | Operators.cs:13:16:13:16 | 5 | >>>= | AssignUnsighedRightShiftExpr |

csharp/ql/test/library-tests/csharp11/operators.ql

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+import csharp
+
+query predicate binarybitwise(
+  BinaryBitwiseOperation op, Expr left, Expr right, string name, string qlclass
+) {
+  op.getFile().getStem() = "Operators" and
+  left = op.getLeftOperand() and
+  right = op.getRightOperand() and
+  name = op.getOperator() and
+  qlclass = op.getAPrimaryQlClass()
+}
+
+query predicate assignbitwise(
+  AssignBitwiseOperation op, Expr left, Expr right, string name, string qlclass
+) {
+  op.getFile().getStem() = "Operators" and
+  left = op.getLValue() and
+  right = op.getRValue() and
+  name = op.getOperator() and
+  qlclass = op.getAPrimaryQlClass()
+}