Prevent module shadow check inlining

Summary:
Mark `_PyModule_IsPossiblyShadowing` as no-inline in Python 3.14, 3.15, and main (3.16).

The helper contains two `PATH_MAX`-sized wide-character buffers. PGO indirect-call promotion caused it to be folded into `PyObject_GetAttr` in 3.14, increasing every attribute lookup stack frame by about 32 KiB and allowing recursive calls to skip the physical-stack recovery margin. The annotation keeps those buffers in a separate frame entered only by module shadowing diagnostics.

Adds managed pyimport patches for all three source trees.

Reviewed By: alexmalyshev

Differential Revision: D123615531

fbshipit-source-id: b0fa0f521244da8793c0ec5a211a80999418a9d2

Author: Yhg1s

Objects/moduleobject.c

@@ -1235,7 +1235,7 @@ _PyModuleSpec_GetFileOrigin(PyObject *spec, PyObject **p_origin)
     return 1;
 }
 
-int
+Py_NO_INLINE int
 _PyModule_IsPossiblyShadowing(PyObject *origin)
 {
     // origin must be a unicode subtype