[clang] [libclang/python] Fix bug in `SourceRange.__contains__`, add tests (PR #101802)

[Jannick Kremer via cfe-commits]

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@@ -386,6 +386,10 @@ def __contains__(self, other):
         # same file, in between lines
         if self.start.line < other.line < self.end.line:
             return True
+        # between columns in one-liner range
+        elif self.start.line == other.line == self.end.line:
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DeinAlptraum wrote:

I've exposed a `clang_lessThanLocations` function on C-side, similar to the `clang_equalLocations` function, and used this to implement the operators on Python side. Hope that resolves this case.

https://github.com/llvm/llvm-project/pull/101802