Accept SE-0422: Expression macro as caller-side default argument (#2318)

Author: DougGregor

proposals/0422-caller-side-default-argument-macro-expression.md

@@ -3,7 +3,7 @@
 * Proposal: [SE-0422](0422-caller-side-default-argument-macro-expression.md)
 * Authors: [Apollo Zhu](https://github.com/ApolloZhu)
 * Review Manager: [Doug Gregor](https://github.com/DougGregor)
-* Status: **Active review (January 30...February 13, 2024)**
+* Status: **Accepted**
 * Implementation: [PR #70602](https://github.com/apple/swift/pull/70602) with experimental feature flag `ExpressionMacroDefaultArguments`
 * Review: ([Review](https://forums.swift.org/t/se-0422-expression-macro-as-caller-side-default-argument/69730))([Pitch](https://forums.swift.org/t/pitch-expression-macro-as-caller-side-default-argument/69019))