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

[Jared Wyles via llvm-commits]

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@@ -572,9 +573,8 @@ DLLImportDefinitionGenerator::createStubsGraph(const SymbolMap &Resolved) {
     // Create __imp_ symbol
     jitlink::Symbol &Ptr =
         jitlink::x86_64::createAnonymousPointer(*G, Sec, &Target);
-    auto NameCopy = G->allocateContent(Twine(getImpPrefix()) + *KV.first);
-    StringRef NameCopyRef = StringRef(NameCopy.data(), NameCopy.size());
-    Ptr.setName(NameCopyRef);
+    auto name = getImpPrefix() + *KV.first;
+    Ptr.setName(G->intern(name.getSingleStringRef()));
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jaredwy wrote:

Ah damn, not sure how this snuck back in hah. 

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