Merge pull request #14411 from aschwaighofer/sema_require_layout_generic_params

Sema: Request the layout for generic parameters if there is a body

lib/Sema/CSApply.cpp

@@ -7494,6 +7494,10 @@ namespace {
         if (tc.coerceParameterListToType(params, closure, fnType))
           return { false, nullptr };
 
+        // Require layout of dependent types that could be used to materialize
+        // metadata types/conformances during IRGen.
+        tc.requestRequiredNominalTypeLayoutForParameters(params);
+
         // If this is a single-expression closure, convert the expression
         // in the body to the result type of the closure.
         if (closure->hasSingleExpressionBody()) {