[clang] [llvm] [CLANG] Add support of shared attribute for the pragma section. (PR #128197)

[Tom Honermann via llvm-commits]

================
@@ -23,7 +23,8 @@ class SectionKind {
   enum Kind {
     /// Metadata - Debug info sections or other metadata.
     Metadata,
-
+    /// Shared 
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tahonermann wrote:

```suggestion
    /// Shared - sections shared across processes.
```

https://github.com/llvm/llvm-project/pull/128197