GH-131238: Core header refactor (GH-131250)

* Moves most structs in pycore_ header files into pycore_structs.h and pycore_runtime_structs.h

* Removes many cross-header dependencies

Python/bootstrap_hash.c

@@ -1,6 +1,7 @@
 #include "Python.h"
 #include "pycore_fileutils.h"     // _Py_fstat_noraise()
 #include "pycore_initconfig.h"
+#include "pycore_pyhash.h"        // _Py_HashSecret_t
 #include "pycore_pylifecycle.h"   // _PyOS_URandomNonblock()
 #include "pycore_runtime.h"       // _PyRuntime
 

Python/dtoa.c

@@ -122,6 +122,7 @@
 #include "pycore_pystate.h"       // _PyInterpreterState_GET()
 #include <stdlib.h>               // exit()
 
+
 /* if _PY_SHORT_FLOAT_REPR == 0, then don't even try to compile
    the following code */
 #if _PY_SHORT_FLOAT_REPR == 1
@@ -157,7 +158,7 @@
 #endif
 
 
-// ULong is defined in pycore_dtoa.h.
+typedef uint32_t ULong;
 typedef int32_t Long;
 typedef uint64_t ULLong;
 

Python/formatter_unicode.c

@@ -5,6 +5,7 @@
 #include "Python.h"
 #include "pycore_fileutils.h"     // _Py_GetLocaleconvNumeric()
 #include "pycore_long.h"          // _PyLong_FormatWriter()
+#include "pycore_unicodeobject.h" // PyUnicode_MAX_CHAR_VALUE()
 #include <locale.h>
 
 /* Raises an exception about an unknown presentation type for this

Python/initconfig.c

@@ -8,6 +8,7 @@
 #include "pycore_pyerrors.h"      // _PyErr_GetRaisedException()
 #include "pycore_pylifecycle.h"   // _Py_PreInitializeFromConfig()
 #include "pycore_pymem.h"         // _PyMem_DefaultRawMalloc()
+#include "pycore_pyhash.h"        // _Py_HashSecret
 #include "pycore_pystate.h"       // _PyThreadState_GET()
 #include "pycore_pystats.h"       // _Py_StatsOn()
 #include "pycore_sysmodule.h"     // _PySys_SetIntMaxStrDigits()

Python/instrumentation.c

@@ -18,6 +18,7 @@
 #include "pycore_pyatomic_ft_wrappers.h" // FT_ATOMIC_STORE_UINTPTR_RELEASE
 #include "pycore_pyerrors.h"
 #include "pycore_pystate.h"       // _PyInterpreterState_GET()
+#include "pycore_runtime_structs.h"     // _PyCoMonitoringData
 
 /* Uncomment this to dump debugging output when assertions fail */
 // #define INSTRUMENT_DEBUG 1

Python/interpconfig.c

@@ -1,6 +1,7 @@
 /* PyInterpreterConfig API */
 
 #include "Python.h"
+#include "pycore_interp.h" // Py_RTFLAGS
 #include "pycore_pylifecycle.h"
 
 #include <stdbool.h>

Python/intrinsics.c

@@ -5,12 +5,15 @@
 #include "pycore_frame.h"
 #include "pycore_function.h"
 #include "pycore_global_objects.h"
+#include "pycore_genobject.h"     // _PyAsyncGenValueWrapperNew
 #include "pycore_compile.h"       // _PyCompile_GetUnaryIntrinsicName, etc
 #include "pycore_intrinsics.h"    // INTRINSIC_PRINT
 #include "pycore_pyerrors.h"      // _PyErr_SetString()
 #include "pycore_runtime.h"       // _Py_ID()
 #include "pycore_sysmodule.h"     // _PySys_GetRequiredAttr()
+#include "pycore_tuple.h"         // _PyTuple_FromArray()
 #include "pycore_typevarobject.h" // _Py_make_typevar()
+#include "pycore_unicodeobject.h" // _PyUnicode_FromASCII
 
 
 /******** Unary functions ********/

Python/pylifecycle.c

@@ -1,7 +1,8 @@
 /* Python interpreter top-level routines, including init/exit */
 
 #include "Python.h"
-
+#include "pycore_runtime_structs.h"
+#include "pycore_unicodeobject.h"
 #include "pycore_audit.h"         // _PySys_ClearAuditHooks()
 #include "pycore_call.h"          // _PyObject_CallMethod()
 #include "pycore_ceval.h"         // _PyEval_FiniGIL()
@@ -13,6 +14,7 @@
 #include "pycore_freelist.h"      // _PyObject_ClearFreeLists()
 #include "pycore_floatobject.h"   // _PyFloat_InitTypes()
 #include "pycore_global_objects_fini_generated.h"  // "_PyStaticObjects_CheckRefcnt()
+#include "pycore_hamt.h"          // _PyHamt_Type
 #include "pycore_import.h"        // _PyImport_BootstrapImp()
 #include "pycore_initconfig.h"    // _PyStatus_OK()
 #include "pycore_list.h"          // _PyList_Fini()

Python/pystate.c

@@ -2,6 +2,8 @@
 /* Thread and interpreter state structures and their interfaces */
 
 #include "Python.h"
+#include "pycore_runtime_structs.h"
+
 #include "pycore_abstract.h"      // _PyIndex_Check()
 #include "pycore_audit.h"         // _Py_AuditHookEntry
 #include "pycore_ceval.h"
@@ -18,6 +20,7 @@
 #include "pycore_pylifecycle.h"   // _PyAST_Fini()
 #include "pycore_pymem.h"         // _PyMem_DebugEnabled()
 #include "pycore_pystate.h"
+#include "pycore_runtime.h"       // _PyRuntime
 #include "pycore_runtime_init.h"  // _PyRuntimeState_INIT
 #include "pycore_stackref.h"      // Py_STACKREF_DEBUG
 #include "pycore_time.h"          // _PyTime_Init()

Python/suggestions.c

@@ -3,6 +3,7 @@
 #include "pycore_frame.h"
 #include "pycore_pyerrors.h"      // export _Py_UTF8_Edit_Cost()
 #include "pycore_runtime.h"       // _Py_ID()
+#include "pycore_unicodeobject.h" // _PyUnicode_Equal()
 
 #define MAX_CANDIDATE_ITEMS 750
 #define MAX_STRING_SIZE 40