[lld] [lld][ELF] Sort thunks by their destination to allow quicker convergence (PR #209962)

[Fangrui Song via llvm-commits]

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@@ -4107,7 +4084,46 @@ InputSection *ThunkSection::getTargetInputSection() const {
   return t->getTargetInputSection();
 }
 
-bool ThunkSection::assignOffsets() {
+bool ThunkSection::assignOffsets(bool sort) {
+  if (sort) {
+    // For thunk section before sorting:
+    //    destA
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MaskRay wrote:

We should list the sections horizontally to use fewer lines

https://github.com/llvm/llvm-project/pull/209962