Also visit auxiliary declarations of top-level decls

Author: DougGregor

lib/SIL/IR/SILSymbolVisitor.cpp

@@ -395,6 +395,13 @@ class SILSymbolVisitorImpl : public ASTVisitor<SILSymbolVisitorImpl> {
       addMainIfNecessary(file);
 
       for (auto D : decls) {
+        D->visitAuxiliaryDecls([&](Decl *decl) {
+          if (Ctx.getOpts().LinkerDirectivesOnly && !requiresLinkerDirective(decl))
+            return;
+
+          visit(decl);
+        });
+
         if (Ctx.getOpts().LinkerDirectivesOnly && !requiresLinkerDirective(D))
           continue;