[lld] [LLD][COFF] Move delay IAT into its own .didat section. (PR #137100)

[via llvm-commits]

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@@ -1083,7 +1083,7 @@ void Writer::createSections() {
   pdataSec = createSection(".pdata", data | r);
   idataSec = createSection(".idata", data | r);
   edataSec = createSection(".edata", data | r);
-  didatSec = createSection(".didat", data | r);
+  didatSec = createSection(".didat", data | r | w);
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kkent030315 wrote:

I think we should put this under some condition. Something like:

```c
if (delay_load_protected) // Check /didatownsection or guard flags directly?
  didatSec = createSection(".didat", data | r | w);
else
  didatSec = createSection(".didat", data | r);
```

https://github.com/llvm/llvm-project/pull/137100