[clang] [libclang/python] Add CompletionChunkKind enum and deprecate old CompletionChunk.Kind (PR #176631)

[Jannick Kremer via cfe-commits]

================
@@ -3053,46 +3053,29 @@ class _CXUnsavedFile(Structure):
 
 
 class CompletionChunk:
-    class Kind:
-        def __init__(self, name: str):
-            self.name = name
-
-        def __str__(self) -> str:
-            return self.name
-
-        def __repr__(self) -> str:
-            return "<ChunkKind: %s>" % self
+    __kind_id: int
 
     def __init__(self, completionString: CObjP, key: int):
         self.cs = completionString
         self.key = key
-        self.__kindNumberCache = -1
+        self.__kind_id = conf.lib.clang_getCompletionChunkKind(
+                self.cs, self.key
+            )
----------------
DeinAlptraum wrote:

Since `CompletionChunk` does not directly correspond to a C++ type, it doesn't already have a `_kind_id` attribute to hold its associated kind like e.g. `Cursor` and `Type` do, so I've added a `__kind_id` attribute manunally here. To do away with the "is it set or is it not set" logic, I've decided to implement this such that the kind is determined immediately on initialization of the `CompletionChunk`. 

https://github.com/llvm/llvm-project/pull/176631