[llvm] Move a lot of symbol code to use the symbol string pool (PR #115796)

[Lang Hames via llvm-commits]

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@@ -427,7 +430,7 @@ class ELFJITLinker_ppc64 : public JITLinker<ELFJITLinker_ppc64<Endianness>> {
            "TOCSymbol should not be defined at this point");
 
     for (Symbol *Sym : G.external_symbols()) {
-      if (Sym->getName() == ELFTOCSymbolName) {
+      if (Sym->hasName() && *Sym->getName() == ELFTOCSymbolName) {
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lhames wrote:

Ditto here: `Sym->getName() == ELFTOCSymbolName`.

https://github.com/llvm/llvm-project/pull/115796