[lld] [lld] check cache before real_path in loadDylib (PR #140791)

[Daniel Rodríguez Troitiño via llvm-commits]

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@@ -253,6 +265,7 @@ DylibFile *macho::loadDylib(MemoryBufferRef mbref, DylibFile *umbrella,
     }
     file =
         make<DylibFile>(**result, umbrella, isBundleLoader, explicitlyLinked);
+    realfile = file;
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drodriguez wrote:

Would something like `llvm::make_scope_exit([&]{ realfile = file; })` be OK to keep things organized? Would that work?

https://github.com/llvm/llvm-project/pull/140791