C#: Rename unsigned right shift class.

Author: michaelnebel

csharp/ql/lib/semmle/code/csharp/exprs/Assignment.qll

@@ -192,12 +192,17 @@ class AssignRightShiftExpr extends AssignBitwiseOperation, @assign_rshift_expr {
 /**
  * An unsigned right-shift assignment operation, for example `x >>>= y`.
  */
-class AssignUnsighedRightShiftExpr extends AssignBitwiseOperation, @assign_urshift_expr {
+class AssignUnsignedRightShiftExpr extends AssignBitwiseOperation, @assign_urshift_expr {
   override string getOperator() { result = ">>>=" }
 
-  override string getAPrimaryQlClass() { result = "AssignUnsighedRightShiftExpr" }
+  override string getAPrimaryQlClass() { result = "AssignUnsignedRightShiftExpr" }
 }
 
+/**
+ *  DEPRECATED: Use `AssignUnsignedRightShiftExpr` instead.
+ */
+deprecated class AssignUnsighedRightShiftExpr = AssignUnsignedRightShiftExpr;
+
 /**
  * An event assignment. Either an event addition (`AddEventExpr`) or an event
  * removal (`RemoveEventExpr`).