[llvm] [llvm-shlib] Change libLLVM-$MAJOR.so symlink to point to versioned SO (PR #82660)

[Nikita Popov via llvm-commits]

================
@@ -2074,7 +2074,7 @@ function(add_lit_testsuites project directory)
 endfunction()
 
 function(llvm_install_library_symlink name dest type)
-  cmake_parse_arguments(ARG "" "COMPONENT" "" ${ARGN})
+  cmake_parse_arguments(ARG "COMPONENT" "SOVERSION" ${ARGN})
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nikic wrote:

Shouldn't this be?
```suggestion
  cmake_parse_arguments(ARG "" "COMPONENT;SOVERSION" "" ${ARGN})
```

https://github.com/llvm/llvm-project/pull/82660