[llvm] [XCOFF] make related SD symbols as isFunction (PR #69553)

[Chen Zheng via llvm-commits]

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@@ -83,8 +83,30 @@ class SymbolizableObjectFile : public SymbolizableModule {
     // getNameFromSymbolTable.
     uint32_t ELFLocalSymIdx;
 
+    // Both are false if this is not a XCOFF local symbol.
+    bool IsXCOFFSDSymbol;
+    bool IsXCOFFLDSymbol;
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chenzheng1030 wrote:

> Is it possible for these to both be true? If not, perhaps an enum, something like XCOFFSymbolClass, would be more appropriate? In fact, an enum might be better in general, to avoid having to keep track of multiple different fields.

Thanks @jh7370. This is a good idea. Updated.

https://github.com/llvm/llvm-project/pull/69553