[llvm] [Offload] add 'olIterateSymbols' runtime function (PR #213036)

[Alex Duran via llvm-commits]

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@@ -43,6 +43,21 @@ Error L0GlobalHandlerTy::getGlobalMetadataFromDevice(GenericDeviceTy &Device,
   return Plugin::success();
 }
 
+Error L0GlobalHandlerTy::iterateSymbols(
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adurang wrote:

is this intended to be called before or after the image is loaded on the device? After is loaded, it should be an ELF and no special handling should be necessary.

https://github.com/llvm/llvm-project/pull/213036