[llvm] [LTO] Fix used before intialised warning (PR #143705)

[David Spickett via llvm-commits]

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@@ -272,8 +272,9 @@ class FunctionImporter {
   // A map from destination modules to lists of imports.
   class ImportListsTy {
   public:
-    ImportListsTy() : EmptyList(ImportIDs) {}
-    ImportListsTy(size_t Size) : EmptyList(ImportIDs), ListsImpl(Size) {}
+    ImportListsTy() : ImportIDs(), EmptyList(ImportIDs) {}
+    ImportListsTy(size_t Size)
+        : ImportIDs(), EmptyList(ImportIDs), ListsImpl(Size) {}
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DavidSpickett wrote:

In theory we don't need to call ImportIDs() here but I thought it was clearer to do so.

https://github.com/llvm/llvm-project/pull/143705