[clang] [libclang/python] Do not rely on `ctypes`' `errcheck` (PR #105490)

[Vlad Serebrennikov via cfe-commits]

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@@ -2454,7 +2480,7 @@ def element_type(self):
         If accessed on a type that is not an array, complex, or vector type, an
         exception will be raised.
         """
-        result = conf.lib.clang_getElementType(self)
+        result = Type.from_result(conf.lib.clang_getElementType(self), (self,))
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Endilll wrote:

We definitely has more leeway here now that `from_result` function doesn't need to satisfy `errcheck` interface. And I find repeated `self` confusing. But I suggest leaving this for a later PR. Let's do this one step at a time.

https://github.com/llvm/llvm-project/pull/105490