[3.12] gh-97908: CAPI docs: Remove repeated struct names from member docs (GH-100054) (#105057)

And add raw HTML fragments to keep old links working.
(cherry picked from commit 1668b41)

Co-authored-by: Petr Viktorin <encukou@gmail.com>

Author: miss-islington

Doc/c-api/structures.rst

@@ -395,7 +395,7 @@ Accessing attributes of extension types
 
          The string should be static, no copy is made of it.
 
-   .. c:member:: Py_ssize_t PyMemberDef.offset
+   .. c:member:: Py_ssize_t offset
 
       The offset in bytes that the member is located on the type’s object struct.
 
@@ -625,23 +625,23 @@ Defining Getters and Setters
    Structure to define property-like access for a type. See also description of
    the :c:member:`PyTypeObject.tp_getset` slot.
 
-   .. c:member:: const char* PyGetSetDef.name
+   .. c:member:: const char* name
 
       attribute name
 
-   .. c:member:: getter PyGetSetDef.get
+   .. c:member:: getter get
 
       C function to get the attribute.
 
-   .. c:member:: setter PyGetSetDef.set
+   .. c:member:: setter set
 
       Optional C function to set or delete the attribute, if omitted the attribute is readonly.
 
-   .. c:member:: const char* PyGetSetDef.doc
+   .. c:member:: const char* doc
 
       optional docstring
 
-   .. c:member:: void* PyGetSetDef.closure
+   .. c:member:: void* closure
 
       Optional function pointer, providing additional data for getter and setter.
 

Doc/c-api/type.rst

@@ -349,6 +349,15 @@ The following functions and structs are used to create
       :c:member:`~PyTypeObject.tp_new` is deprecated and in Python 3.14+ it
       will be no longer allowed.
 
+.. raw:: html
+
+   <!-- Keep old URL fragments working (see gh-97908) -->
+   <span id='c.PyType_Spec.PyType_Spec.name'></span>
+   <span id='c.PyType_Spec.PyType_Spec.basicsize'></span>
+   <span id='c.PyType_Spec.PyType_Spec.itemsize'></span>
+   <span id='c.PyType_Spec.PyType_Spec.flags'></span>
+   <span id='c.PyType_Spec.PyType_Spec.slots'></span>
+
 .. c:type:: PyType_Spec
 
    Structure defining a type's behavior.
@@ -410,12 +419,18 @@ The following functions and structs are used to create
 
       Each slot ID should be specified at most once.
 
+.. raw:: html
+
+   <!-- Keep old URL fragments working (see gh-97908) -->
+   <span id='c.PyType_Slot.PyType_Slot.slot'></span>
+   <span id='c.PyType_Slot.PyType_Slot.pfunc'></span>
+
 .. c:type:: PyType_Slot
 
    Structure defining optional functionality of a type, containing a slot ID
    and a value pointer.
 
-   .. c:member:: int PyType_Slot.slot
+   .. c:member:: int slot
 
       A slot ID.
 
@@ -459,7 +474,7 @@ The following functions and structs are used to create
         :c:member:`~PyBufferProcs.bf_releasebuffer` are now available
         under the limited API.
 
-   .. c:member:: void *PyType_Slot.pfunc
+   .. c:member:: void *pfunc
 
       The desired value of the slot. In most cases, this is a pointer
       to a function.