[Version 13.0] Feature support for Index-from-end enhancement

standard/expressions.md

@@ -1,15 +1,15 @@
 # 12 Expressions
 
 ## 12.1 General
 
 An expression is a sequence of operators and operands. This clause defines the syntax, order of evaluation of operands and operators, and meaning of expressions.
 
 An expression *E* is said to ***directly contain*** a subexpression *E₁* if it is not subject to a user-defined conversion [§10.5](conversions.md#105-user-defined-conversions) whose parameter is not of a non-nullable value type, and one of the following conditions holds:
 
 - *E* is *E₁*.
 - If *E* is a parenthesized expression `(E₂)`, and *E₂* directly contains *E₁*.
 - If *E* is a null-forgiving operator expression `E₂!`, and *E₂* directly contains *E₁*.
 - If *E* is a cast expression `(T)E₂`, and the cast does not subject *E₂* to a non-lifted user-defined conversion whose parameter is not of a non-nullable value type, and *E₂* directly contains *E₁*.
 
 ## 12.2 Expression classifications
 
@@ -3011,7 +3011,7 @@
 
 Each *initializer_target* is followed by an equals sign and either an expression, an object initializer or a collection initializer. It is not possible for expressions within the object initializer to refer to the newly created object it is initializing.
 
-In the *argument_list* of an *initializer_target* there is no implicit support for arguments of type `Index` ([§18.4.2](ranges.md#1842-implicit-index-support)) or `Range` ([§18.4.3](ranges.md#1843-implicit-range-support)).
+In the *argument_list* of an *initializer_target* there is no implicit support for arguments of type `Range` ([§18.4.3](ranges.md#1843-implicit-range-support)).
 
 A member initializer that specifies an expression after the equals sign is processed in the same way as an assignment ([§12.24.2](expressions.md#12242-simple-assignment)) to the target.