[NFC] dr -> cwg, reword ReleaseNotes

Author: MitalAshok

clang/docs/ReleaseNotes.rst

@@ -258,9 +258,11 @@ Resolutions to C++ Defect Reports
   a single element of the same type instead of always copying.
   (`CWG2137: List-initialization from object of same type <https://cplusplus.github.io/CWG/issues/2137.html>`)
 
-- Implemented `CWG2311 <https://wg21.link/CWG2311>`_: given a prvalue ``e`` of object type
-  ``T``, ``T{e}`` will try to resolve an initializer list constructor and will use it if successful (CWG2137).
+- Speculative resolution for CWG2311 implemented so that the implementation of CWG2137 doesn't remove
+  previous cases where guaranteed copy elision was done. Given a prvalue ``e`` of class type
+  ``T``, ``T{e}`` will try to resolve an initializer list constructor and will use it if successful.
   Otherwise, if there is no initializer list constructor, the copy will be elided as if it was ``T(e)``.
+  (`CWG2311: Missed case for guaranteed copy elision <https://cplusplus.github.io/CWG/issues/2311.html>`)
 
 C Language Changes
 ------------------

clang/test/CXX/drs/cwg23xx.cpp

@@ -104,7 +104,7 @@ struct Z : W,
 // cwg2331: na
 // cwg2335 is in cwg2335.cxx
 
-namespace dr2311 {  // dr2311: 18 open
+namespace cwg2311 {  // cwg2311 is open with no proposed resolution
 #if __cplusplus >= 201707L
 template<typename T>
 void test() {
@@ -170,12 +170,12 @@ struct any {
 template<typename T>
 struct X {
     X();
-    X(T) = delete; // #dr2311-X
+    X(T) = delete; // #cwg2311-X
 };
 
 X<std::initializer_list<any>> x{ X<std::initializer_list<any>>() };
 // since-cxx17-error@-1 {{call to deleted constructor of 'X<std::initializer_list<any>>'}}
-//   since-cxx17-note@#dr2311-X {{'X' has been explicitly marked deleted here}}
+//   since-cxx17-note@#cwg2311-X {{'X' has been explicitly marked deleted here}}
 #endif
 }
 

clang/www/cxx_dr_status.html

@@ -13674,7 +13674,7 @@ <h2 id="cxxdr">C++ defect report implementation status</h2>
     <td><a href="https://cplusplus.github.io/CWG/issues/2311.html">2311</a></td>
     <td>open</td>
     <td>Missed case for guaranteed copy elision</td>
-    <td class="unreleased" align="center">Clang 18</td>
+    <td align="center">Not resolved</td>
   </tr>
   <tr id="2312">
     <td><a href="https://cplusplus.github.io/CWG/issues/2312.html">2312</a></td>