Import upstream CPython branch '3.14'

Summary:
Python `3.14.0rc2+` (`3.14`) was **published** on 2025-08-26 05:45:08+00:00.

# Commit Info

Base: (`3.14.0rc2+`) - `271823fdafc29c00189bdb253199db3083dd3933` (commit date: 2025-08-23 16:27:51+00:00)
Imported: (`3.14.0rc2+`) - `3.14` (commit date: 2025-08-26 05:45:08+00:00)

# Files added

```
Misc/NEWS.d/next/Core_and_Builtins/2025-08-17-13-36-53.gh-issue-137883.55VDCN.rst
Misc/NEWS.d/next/Tools-Demos/2025-08-21-14-04-50.gh-issue-137873.qxffLt.rst
iOS/testbed/iOSTestbed.lldbinit
iOS/testbed/iOSTestbed.xcodeproj/xcshareddata/xcschemes/iOSTestbed.xcscheme
iOS/testbed/iOSTestbed.xctestplan
```

Reviewed By: DinoV

Differential Revision: D81030813

fbshipit-source-id: 5a018e96e8a4ae5f2393bd1940120ef6ef7662d6

Author: itamaro

cinderx/Interpreter/3.14/Includes/generated_cases.c.h

@@ -1,3 +1,4 @@
+// @generated
 // This file is generated by Tools/cases_generator/tier1_generator.py
 // from:
 //   Python/bytecodes.c, 3.14/cinder-bytecodes.c
@@ -3324,6 +3325,14 @@
                     JUMP_TO_PREDICTED(CALL_KW);
                 }
             }
+            // _CHECK_RECURSION_REMAINING
+            {
+                if (tstate->py_recursion_remaining <= 1) {
+                    UPDATE_MISS_STATS(CALL_KW);
+                    assert(_PyOpcode_Deopt[opcode] == (CALL_KW));
+                    JUMP_TO_PREDICTED(CALL_KW);
+                }
+            }
             // _PY_FRAME_KW
             {
                 kwnames = stack_pointer[-1];

cinderx/Interpreter/3.14/cinder_opcode_metadata.h

@@ -1366,7 +1366,7 @@ _PyOpcode_macro_expansion[256] = {
     [CALL_ISINSTANCE] = { .nuops = 1, .uops = { { _CALL_ISINSTANCE, OPARG_SIMPLE, 3 } } },
     [CALL_KW_BOUND_METHOD] = { .nuops = 6, .uops = { { _CHECK_PEP_523, OPARG_SIMPLE, 1 }, { _CHECK_METHOD_VERSION_KW, 2, 1 }, { _EXPAND_METHOD_KW, OPARG_SIMPLE, 3 }, { _PY_FRAME_KW, OPARG_SIMPLE, 3 }, { _SAVE_RETURN_OFFSET, OPARG_SAVE_RETURN_OFFSET, 3 }, { _PUSH_FRAME, OPARG_SIMPLE, 3 } } },
     [CALL_KW_NON_PY] = { .nuops = 3, .uops = { { _CHECK_IS_NOT_PY_CALLABLE_KW, OPARG_SIMPLE, 3 }, { _CALL_KW_NON_PY, OPARG_SIMPLE, 3 }, { _CHECK_PERIODIC, OPARG_SIMPLE, 3 } } },
-    [CALL_KW_PY] = { .nuops = 5, .uops = { { _CHECK_PEP_523, OPARG_SIMPLE, 1 }, { _CHECK_FUNCTION_VERSION_KW, 2, 1 }, { _PY_FRAME_KW, OPARG_SIMPLE, 3 }, { _SAVE_RETURN_OFFSET, OPARG_SAVE_RETURN_OFFSET, 3 }, { _PUSH_FRAME, OPARG_SIMPLE, 3 } } },
+    [CALL_KW_PY] = { .nuops = 6, .uops = { { _CHECK_PEP_523, OPARG_SIMPLE, 1 }, { _CHECK_FUNCTION_VERSION_KW, 2, 1 }, { _CHECK_RECURSION_REMAINING, OPARG_SIMPLE, 3 }, { _PY_FRAME_KW, OPARG_SIMPLE, 3 }, { _SAVE_RETURN_OFFSET, OPARG_SAVE_RETURN_OFFSET, 3 }, { _PUSH_FRAME, OPARG_SIMPLE, 3 } } },
     [CALL_LEN] = { .nuops = 3, .uops = { { _GUARD_NOS_NULL, OPARG_SIMPLE, 3 }, { _GUARD_CALLABLE_LEN, OPARG_SIMPLE, 3 }, { _CALL_LEN, OPARG_SIMPLE, 3 } } },
     [CALL_LIST_APPEND] = { .nuops = 1, .uops = { { _CALL_LIST_APPEND, OPARG_SIMPLE, 3 } } },
     [CALL_METHOD_DESCRIPTOR_FAST] = { .nuops = 2, .uops = { { _CALL_METHOD_DESCRIPTOR_FAST, OPARG_SIMPLE, 3 }, { _CHECK_PERIODIC, OPARG_SIMPLE, 3 } } },