The test currently fails with
```
error: 'error' diagnostics seen but not expected:
File /home/gehre/llvm-project/clang/test/SemaCXX/attr-gsl-owner-pointer.cpp Line 20: 'Owner' attribute takes one argument
File /home/gehre/llvm-project/clang/test/SemaCXX/attr-gsl-owner-pointer.cpp Line 21: 'Pointer' attribute takes one argument
File /home/gehre/llvm-project/clang/test/SemaCXX/attr-gsl-owner-pointer.cpp Line 24: expected '(' for function-style cast or type construction
File /home/gehre/llvm-project/clang/test/SemaCXX/attr-gsl-owner-pointer.cpp Line 24: expected '(' for function-style cast or type construction
File /home/gehre/llvm-project/clang/test/SemaCXX/attr-gsl-owner-pointer.cpp Line 26: expected '(' for function-style cast or type construction
File /home/gehre/llvm-project/clang/test/SemaCXX/attr-gsl-owner-pointer.cpp Line 26: expected '(' for function-style cast or type construction
File /home/gehre/llvm-project/clang/test/SemaCXX/attr-gsl-owner-pointer.cpp Line 27: expected '(' for function-style cast or type construction
File /home/gehre/llvm-project/clang/test/SemaCXX/attr-gsl-owner-pointer.cpp Line 27: expected '(' for function-style cast or type construction
File /home/gehre/llvm-project/clang/test/SemaCXX/attr-gsl-owner-pointer.cpp Line 29: expected '(' for function-style cast or type construction
File /home/gehre/llvm-project/clang/test/SemaCXX/attr-gsl-owner-pointer.cpp Line 29: expected '(' for function-style cast or type construction
File /home/gehre/llvm-project/clang/test/SemaCXX/attr-gsl-owner-pointer.cpp Line 30: expected '(' for function-style cast or type construction
File /home/gehre/llvm-project/clang/test/SemaCXX/attr-gsl-owner-pointer.cpp Line 30: expected '(' for function-style cast or type construction
File /home/gehre/llvm-project/clang/test/SemaCXX/attr-gsl-owner-pointer.cpp Line 32: expected '(' for function-style cast or type construction
File /home/gehre/llvm-project/clang/test/SemaCXX/attr-gsl-owner-pointer.cpp Line 33: expected '(' for function-style cast or type construction
File /home/gehre/llvm-project/clang/test/SemaCXX/attr-gsl-owner-pointer.cpp Line 35: expected '(' for function-style cast or type construction
File /home/gehre/llvm-project/clang/test/SemaCXX/attr-gsl-owner-pointer.cpp Line 36: 'S' does not refer to a value
error: 'note' diagnostics seen but not expected:
File /home/gehre/llvm-project/clang/test/SemaCXX/attr-gsl-owner-pointer.cpp Line 8: declared here
```