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

[Lang Hames via llvm-commits]

================
@@ -24,12 +26,15 @@ static Triple createTripleWithCOFFFormat(Triple T) {
 }
 
 COFFLinkGraphBuilder::COFFLinkGraphBuilder(
-    const object::COFFObjectFile &Obj, Triple TT, SubtargetFeatures Features,
+    const object::COFFObjectFile &Obj,
+    std::shared_ptr<orc::SymbolStringPool> SSP, Triple TT,
+    SubtargetFeatures Features,
     LinkGraph::GetEdgeKindNameFunction GetEdgeKindName)
-    : Obj(Obj), G(std::make_unique<LinkGraph>(
-                    Obj.getFileName().str(), createTripleWithCOFFFormat(TT),
-                    std::move(Features), getPointerSize(Obj),
-                    getEndianness(Obj), std::move(GetEdgeKindName))) {
+    : Obj(Obj),
+      G(std::make_unique<LinkGraph>(
+          Obj.getFileName().str(), SSP, createTripleWithCOFFFormat(TT),
----------------
lhames wrote:

```c++
std::move(SSP)
```

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