[llvm] Omit .debug_aranges if it is empty (PR #99897)

[Edd Dawson via llvm-commits]

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@@ -3012,8 +3015,7 @@ void DwarfDebug::emitDebugARanges() {
   for (auto &I : SectionMap) {
     MCSection *Section = I.first;
     SmallVector<SymbolCU, 8> &List = I.second;
-    if (List.size() < 1)
-      continue;
+    assert(!List.empty());
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playstation-edd wrote:

After convincing myself that any `List` must be non-empty, I was confident that the early `return` could be placed above this loop. I replaced the dead check with an assert to avoid similar head scratching in future.

https://github.com/llvm/llvm-project/pull/99897