Add more 'nogil' declarations to NumPy functions that do not require the GIL...

Add more 'nogil' declarations to NumPy functions that do not require the GIL (according to the declarations shipped by NumPy itself).
See https://github.com/numpy/numpy/pull/16170

Cython/Includes/numpy/__init__.pxd

@@ -378,85 +378,85 @@ cdef extern from "numpy/arrayobject.h":
     void* PyArray_DATA(ndarray) nogil
     char* PyArray_BYTES(ndarray) nogil
 
-    npy_intp* PyArray_DIMS(ndarray)
-    npy_intp* PyArray_STRIDES(ndarray)
-    npy_intp PyArray_DIM(ndarray, size_t)
-    npy_intp PyArray_STRIDE(ndarray, size_t)
+    npy_intp* PyArray_DIMS(ndarray) nogil
+    npy_intp* PyArray_STRIDES(ndarray) nogil
+    npy_intp PyArray_DIM(ndarray, size_t) nogil
+    npy_intp PyArray_STRIDE(ndarray, size_t) nogil
 
     PyObject *PyArray_BASE(ndarray)  # returns borrowed reference!
     PyArray_Descr *PyArray_DESCR(ndarray) # returns borrowed reference to dtype!
     int PyArray_FLAGS(ndarray)
-    npy_intp PyArray_ITEMSIZE(ndarray)
-    int PyArray_TYPE(ndarray arr)
+    npy_intp PyArray_ITEMSIZE(ndarray) nogil
+    int PyArray_TYPE(ndarray arr) nogil
 
     object PyArray_GETITEM(ndarray arr, void *itemptr)
     int PyArray_SETITEM(ndarray arr, void *itemptr, object obj)
 
-    bint PyTypeNum_ISBOOL(int)
-    bint PyTypeNum_ISUNSIGNED(int)
-    bint PyTypeNum_ISSIGNED(int)
-    bint PyTypeNum_ISINTEGER(int)
-    bint PyTypeNum_ISFLOAT(int)
-    bint PyTypeNum_ISNUMBER(int)
-    bint PyTypeNum_ISSTRING(int)
-    bint PyTypeNum_ISCOMPLEX(int)
-    bint PyTypeNum_ISPYTHON(int)
-    bint PyTypeNum_ISFLEXIBLE(int)
-    bint PyTypeNum_ISUSERDEF(int)
-    bint PyTypeNum_ISEXTENDED(int)
-    bint PyTypeNum_ISOBJECT(int)
-
-    bint PyDataType_ISBOOL(dtype)
-    bint PyDataType_ISUNSIGNED(dtype)
-    bint PyDataType_ISSIGNED(dtype)
-    bint PyDataType_ISINTEGER(dtype)
-    bint PyDataType_ISFLOAT(dtype)
-    bint PyDataType_ISNUMBER(dtype)
-    bint PyDataType_ISSTRING(dtype)
-    bint PyDataType_ISCOMPLEX(dtype)
-    bint PyDataType_ISPYTHON(dtype)
-    bint PyDataType_ISFLEXIBLE(dtype)
-    bint PyDataType_ISUSERDEF(dtype)
-    bint PyDataType_ISEXTENDED(dtype)
-    bint PyDataType_ISOBJECT(dtype)
-    bint PyDataType_HASFIELDS(dtype)
-    bint PyDataType_HASSUBARRAY(dtype)
-
-    bint PyArray_ISBOOL(ndarray)
-    bint PyArray_ISUNSIGNED(ndarray)
-    bint PyArray_ISSIGNED(ndarray)
-    bint PyArray_ISINTEGER(ndarray)
-    bint PyArray_ISFLOAT(ndarray)
-    bint PyArray_ISNUMBER(ndarray)
-    bint PyArray_ISSTRING(ndarray)
-    bint PyArray_ISCOMPLEX(ndarray)
-    bint PyArray_ISPYTHON(ndarray)
-    bint PyArray_ISFLEXIBLE(ndarray)
-    bint PyArray_ISUSERDEF(ndarray)
-    bint PyArray_ISEXTENDED(ndarray)
-    bint PyArray_ISOBJECT(ndarray)
-    bint PyArray_HASFIELDS(ndarray)
-
-    bint PyArray_ISVARIABLE(ndarray)
-
-    bint PyArray_SAFEALIGNEDCOPY(ndarray)
-    bint PyArray_ISNBO(char)              # works on ndarray.byteorder
-    bint PyArray_IsNativeByteOrder(char)  # works on ndarray.byteorder
-    bint PyArray_ISNOTSWAPPED(ndarray)
-    bint PyArray_ISBYTESWAPPED(ndarray)
-
-    bint PyArray_FLAGSWAP(ndarray, int)
-
-    bint PyArray_ISCARRAY(ndarray)
-    bint PyArray_ISCARRAY_RO(ndarray)
-    bint PyArray_ISFARRAY(ndarray)
-    bint PyArray_ISFARRAY_RO(ndarray)
-    bint PyArray_ISBEHAVED(ndarray)
-    bint PyArray_ISBEHAVED_RO(ndarray)
-
-
-    bint PyDataType_ISNOTSWAPPED(dtype)
-    bint PyDataType_ISBYTESWAPPED(dtype)
+    bint PyTypeNum_ISBOOL(int) nogil
+    bint PyTypeNum_ISUNSIGNED(int) nogil
+    bint PyTypeNum_ISSIGNED(int) nogil
+    bint PyTypeNum_ISINTEGER(int) nogil
+    bint PyTypeNum_ISFLOAT(int) nogil
+    bint PyTypeNum_ISNUMBER(int) nogil
+    bint PyTypeNum_ISSTRING(int) nogil
+    bint PyTypeNum_ISCOMPLEX(int) nogil
+    bint PyTypeNum_ISPYTHON(int) nogil
+    bint PyTypeNum_ISFLEXIBLE(int) nogil
+    bint PyTypeNum_ISUSERDEF(int) nogil
+    bint PyTypeNum_ISEXTENDED(int) nogil
+    bint PyTypeNum_ISOBJECT(int) nogil
+
+    bint PyDataType_ISBOOL(dtype) nogil
+    bint PyDataType_ISUNSIGNED(dtype) nogil
+    bint PyDataType_ISSIGNED(dtype) nogil
+    bint PyDataType_ISINTEGER(dtype) nogil
+    bint PyDataType_ISFLOAT(dtype) nogil
+    bint PyDataType_ISNUMBER(dtype) nogil
+    bint PyDataType_ISSTRING(dtype) nogil
+    bint PyDataType_ISCOMPLEX(dtype) nogil
+    bint PyDataType_ISPYTHON(dtype) nogil
+    bint PyDataType_ISFLEXIBLE(dtype) nogil
+    bint PyDataType_ISUSERDEF(dtype) nogil
+    bint PyDataType_ISEXTENDED(dtype) nogil
+    bint PyDataType_ISOBJECT(dtype) nogil
+    bint PyDataType_HASFIELDS(dtype) nogil
+    bint PyDataType_HASSUBARRAY(dtype) nogil
+
+    bint PyArray_ISBOOL(ndarray) nogil
+    bint PyArray_ISUNSIGNED(ndarray) nogil
+    bint PyArray_ISSIGNED(ndarray) nogil
+    bint PyArray_ISINTEGER(ndarray) nogil
+    bint PyArray_ISFLOAT(ndarray) nogil
+    bint PyArray_ISNUMBER(ndarray) nogil
+    bint PyArray_ISSTRING(ndarray) nogil
+    bint PyArray_ISCOMPLEX(ndarray) nogil
+    bint PyArray_ISPYTHON(ndarray) nogil
+    bint PyArray_ISFLEXIBLE(ndarray) nogil
+    bint PyArray_ISUSERDEF(ndarray) nogil
+    bint PyArray_ISEXTENDED(ndarray) nogil
+    bint PyArray_ISOBJECT(ndarray) nogil
+    bint PyArray_HASFIELDS(ndarray) nogil
+
+    bint PyArray_ISVARIABLE(ndarray) nogil
+
+    bint PyArray_SAFEALIGNEDCOPY(ndarray) nogil
+    bint PyArray_ISNBO(char) nogil              # works on ndarray.byteorder
+    bint PyArray_IsNativeByteOrder(char) nogil  # works on ndarray.byteorder
+    bint PyArray_ISNOTSWAPPED(ndarray) nogil
+    bint PyArray_ISBYTESWAPPED(ndarray) nogil
+
+    bint PyArray_FLAGSWAP(ndarray, int) nogil
+
+    bint PyArray_ISCARRAY(ndarray) nogil
+    bint PyArray_ISCARRAY_RO(ndarray) nogil
+    bint PyArray_ISFARRAY(ndarray) nogil
+    bint PyArray_ISFARRAY_RO(ndarray) nogil
+    bint PyArray_ISBEHAVED(ndarray) nogil
+    bint PyArray_ISBEHAVED_RO(ndarray) nogil
+
+
+    bint PyDataType_ISNOTSWAPPED(dtype) nogil
+    bint PyDataType_ISBYTESWAPPED(dtype) nogil
 
     bint PyArray_DescrCheck(object)
 
@@ -471,15 +471,16 @@ cdef extern from "numpy/arrayobject.h":
     bint PyArray_IsZeroDim(object)
     # Cannot be supported due to ## ## in macro:
     # bint PyArray_IsScalar(object, verbatim work)
-    bint PyArray_CheckScalar(object)
-    bint PyArray_IsPythonNumber(object)
-    bint PyArray_IsPythonScalar(object)
-    bint PyArray_IsAnyScalar(object)
-    bint PyArray_CheckAnyScalar(object)
-    ndarray PyArray_GETCONTIGUOUS(ndarray)
-    bint PyArray_SAMESHAPE(ndarray, ndarray)
+    bint PyArray_CheckScalar(object) nogil
+    bint PyArray_IsPythonNumber(object) nogil
+    bint PyArray_IsPythonScalar(object) nogil
+    bint PyArray_IsAnyScalar(object) nogil
+    bint PyArray_CheckAnyScalar(object) nogil
+
+    ndarray PyArray_GETCONTIGUOUS(ndarray) nogil
+    bint PyArray_SAMESHAPE(ndarray, ndarray) nogil
     npy_intp PyArray_SIZE(ndarray) nogil
-    npy_intp PyArray_NBYTES(ndarray)
+    npy_intp PyArray_NBYTES(ndarray) nogil
 
     object PyArray_FROM_O(object)
     object PyArray_FROM_OF(object m, int flags)
@@ -492,16 +493,16 @@ cdef extern from "numpy/arrayobject.h":
     npy_intp PyArray_REFCOUNT(object)
     object PyArray_ContiguousFromAny(op, int, int min_depth, int max_depth)
     unsigned char PyArray_EquivArrTypes(ndarray a1, ndarray a2)
-    bint PyArray_EquivByteorders(int b1, int b2)
+    bint PyArray_EquivByteorders(int b1, int b2) nogil
     object PyArray_SimpleNew(int nd, npy_intp* dims, int typenum)
     object PyArray_SimpleNewFromData(int nd, npy_intp* dims, int typenum, void* data)
     #object PyArray_SimpleNewFromDescr(int nd, npy_intp* dims, dtype descr)
     object PyArray_ToScalar(void* data, ndarray arr)
 
-    void* PyArray_GETPTR1(ndarray m, npy_intp i)
-    void* PyArray_GETPTR2(ndarray m, npy_intp i, npy_intp j)
-    void* PyArray_GETPTR3(ndarray m, npy_intp i, npy_intp j, npy_intp k)
-    void* PyArray_GETPTR4(ndarray m, npy_intp i, npy_intp j, npy_intp k, npy_intp l)
+    void* PyArray_GETPTR1(ndarray m, npy_intp i) nogil
+    void* PyArray_GETPTR2(ndarray m, npy_intp i, npy_intp j) nogil
+    void* PyArray_GETPTR3(ndarray m, npy_intp i, npy_intp j, npy_intp k) nogil
+    void* PyArray_GETPTR4(ndarray m, npy_intp i, npy_intp j, npy_intp k, npy_intp l) nogil
 
     void PyArray_XDECREF_ERR(ndarray)
     # Cannot be supported due to out arg