Sema: Trigger lazy loading when recording potential selector conflicts

Author: slavapestov

lib/Sema/TypeCheckDeclObjC.cpp

@@ -1619,6 +1619,9 @@ void markAsObjC(ValueDecl *D, ObjCReason reason,
 
     // Record the method in the class, if it's a member of one.
     if (auto classDecl = D->getDeclContext()->getSelfClassDecl()) {
+      // Trigger lazy loading of any imported members with the same selector.
+      (void) classDecl->lookupDirect(selector, !method->isStatic());
+
       classDecl->recordObjCMethod(method, selector);
     }