support unsigned right shift operator

Author: RexJaeschke

standard/variables.md

@@ -663,7 +663,7 @@ The following rule applies to these kinds of expressions: literals ([§12.8.2](e
 
 #### 9.4.4.23 General rules for expressions with embedded expressions
 
-The following rules apply to these kinds of expressions: parenthesized expressions ([§12.8.5](expressions.md#1285-parenthesized-expressions)), tuple expressions ([§12.8.6](expressions.md#1286-tuple-expressions)), element access expressions ([§12.8.12](expressions.md#12812-element-access)), base access expressions with indexing ([§12.8.15](expressions.md#12815-base-access)), increment and decrement expressions ([§12.8.16](expressions.md#12816-postfix-increment-and-decrement-operators), [§12.9.7](expressions.md#1297-prefix-increment-and-decrement-operators)), cast expressions ([§12.9.8](expressions.md#1298-cast-expressions)), unary `+`, `-`, `~`, `*` expressions, binary `+`, `-`, `*`, `/`, `%`, `<<`, `>>`, `<`, `<=`, `>`, `>=`, `==`, `!=`, `is`, `as`, `&`, `|`, `^` expressions ([§12.13](expressions.md#1213-arithmetic-operators), [§12.14](expressions.md#1214-shift-operators), [§12.15](expressions.md#1215-relational-and-type-testing-operators), [§12.16](expressions.md#1216-logical-operators)), compound assignment expressions ([§12.24.4](expressions.md#12244-compound-assignment)), `checked` and `unchecked` expressions ([§12.8.20](expressions.md#12820-the-checked-and-unchecked-operators)), array and delegate creation expressions ([§12.8.17](expressions.md#12817-the-new-operator)) , and `await` expressions ([§12.9.9](expressions.md#1299-await-expressions)).
+The following rules apply to these kinds of expressions: parenthesized expressions ([§12.8.5](expressions.md#1285-parenthesized-expressions)), tuple expressions ([§12.8.6](expressions.md#1286-tuple-expressions)), element access expressions ([§12.8.12](expressions.md#12812-element-access)), base access expressions with indexing ([§12.8.15](expressions.md#12815-base-access)), increment and decrement expressions ([§12.8.16](expressions.md#12816-postfix-increment-and-decrement-operators), [§12.9.7](expressions.md#1297-prefix-increment-and-decrement-operators)), cast expressions ([§12.9.8](expressions.md#1298-cast-expressions)), unary `+`, `-`, `~`, `*` expressions, binary `+`, `-`, `*`, `/`, `%`, `<<`, `>>`, `>>>`, `<`, `<=`, `>`, `>=`, `==`, `!=`, `is`, `as`, `&`, `|`, `^` expressions ([§12.13](expressions.md#1213-arithmetic-operators), [§12.14](expressions.md#1214-shift-operators), [§12.15](expressions.md#1215-relational-and-type-testing-operators), [§12.16](expressions.md#1216-logical-operators)), compound assignment expressions ([§12.24.4](expressions.md#12244-compound-assignment)), `checked` and `unchecked` expressions ([§12.8.20](expressions.md#12820-the-checked-and-unchecked-operators)), array and delegate creation expressions ([§12.8.17](expressions.md#12817-the-new-operator)) , and `await` expressions ([§12.9.9](expressions.md#1299-await-expressions)).
 
 Each of these expressions has one or more subexpressions that are unconditionally evaluated in a fixed order.