[llvm] [GOFF] Add writing of section symbols (PR #133799)

[Fangrui Song via llvm-commits]

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@@ -26,6 +26,21 @@ GOFFObjectWriter &MCGOFFStreamer::getWriter() {
   return static_cast<GOFFObjectWriter &>(getAssembler().getWriter());
 }
 
+// Make sure that all section are registered in the correct order.
+static void registerSectionHierarchy(MCAssembler &Asm, MCSectionGOFF *Section) {
+  if (Section->isRegistered())
+    return;
+  if (Section->getParent())
+    registerSectionHierarchy(Asm, Section->getParent());
+  Asm.registerSection(*Section);
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MaskRay wrote:

This calls registerSection outside MCObjectStreamer::changeSection, which should be avoided.

Sent https://github.com/llvm/llvm-project/pull/150183 to fix it.

This is required for a MCContext fragment refactoring 
https://github.com/MaskRay/llvm-project/pull/4

https://github.com/llvm/llvm-project/pull/133799