Sync pre-release CPython 3.15 branch from GitHub (2026-06-30)

Summary:
Imported python/cpython `3.15.0b3+dev` from upstream rev [`ac20726`](https://www.github.com/python/cpython/commit/ac207265bdbcf7d507d2c9831aa54eda0fe9bb61) (committed 2026-06-30 00:12:59+00:00).

# Commit Info

- Base: (`3.15.0b3+dev`) - [`404113b`](https://www.github.com/python/cpython/commit/404113bd37625215d03545e51f8caa9fb7f1eea8) (commit date: 2026-06-29 02:34:20+00:00)
- Imported: (`3.15.0b3+dev`) - [`ac20726`](https://www.github.com/python/cpython/commit/ac207265bdbcf7d507d2c9831aa54eda0fe9bb61) (commit date: 2026-06-30 00:12:59+00:00)

# Noteworthy file changes

- Test files (1 added)
- Low-signal files (11 added) (NEWS.d, docs, .github)

Complete list of added/removed files: https://www.internalfb.com/intern/everpaste/?color=0&handle=GKdteiby1XD7FW4FAInh9vmdz64xbr0LAAAz

Differential Revision: D110143556

fbshipit-source-id: 94822308fe873d67f8beafe50a51a7b5a4d9baf0

Author: generatedunixname1734921407115435

cinderx/Interpreter/3.15/Includes/Python/ceval_macros.h

@@ -388,14 +388,15 @@ static void dtrace_function_return(_PyInterpreterFrame *);
 // for an exception handler, displaying the traceback, and so on
 #define INSTRUMENTED_JUMP(src, dest, event) \
 do { \
+    _Py_CODEUNIT *_dest = (dest); \
     if (tstate->tracing) {\
-        next_instr = dest; \
+        next_instr = _dest; \
     } else { \
         _PyFrame_SetStackPointer(frame, stack_pointer); \
-        next_instr = _Py_call_instrumentation_jump(this_instr, tstate, event, frame, src, dest); \
+        next_instr = _Py_call_instrumentation_jump(this_instr, tstate, event, frame, src, _dest); \
         stack_pointer = _PyFrame_GetStackPointer(frame); \
         if (next_instr == NULL) { \
-            next_instr = (dest)+1; \
+            next_instr = _dest + 1; \
             JUMP_TO_LABEL(error); \
         } \
     } \