fix static_asserts in laplace

Author: SteveBronder

stan/math/mix/functor/laplace_marginal_density.hpp

@@ -313,7 +313,7 @@ inline void set_zero_adjoint(Output&& output) {
             output_i.adj() = 0;
           } else {
             static_assert(
-                sizeof(Output*) == 0,
+                sizeof(std::decay_t<Output>*) == 0,
                 "INTERNAL ERROR:(laplace_marginal_lpdf) set_zero_adjoints was "
                 "not able to deduce the actions needed for the given type.");
           }
@@ -358,7 +358,7 @@ inline void collect_adjoints(Output& output, Input&& input) {
           }
         } else {
           static_assert(
-              sizeof(Output*) == 0,
+              sizeof(std::decay_t<Output>*) == 0,
               "INTERNAL ERROR:(laplace_marginal_lpdf) collect_adjoints was not "
               "able to deduce the actiopns needed for the given type.");
         }
@@ -812,7 +812,7 @@ inline void collect_adjoints(Output&& output, Input&& input) {
           output_i += input_i;
         } else {
           static_assert(
-              sizeof(Output*) == 0,
+              sizeof(std::decay_t<Output>*) == 0,
               "INTERNAL ERROR:(laplace_marginal_lpdf) collect_adjoints was not "
               "able to deduce the actiopns needed for the given type.");
         }
@@ -862,7 +862,7 @@ inline void copy_compute_s2(Output&& output, Input&& input) {
           }
         } else {
           static_assert(
-              sizeof(Output*) == 0,
+              sizeof(std::decay_t<Output>*) == 0,
               "INTERNAL ERROR:(laplace_marginal_lpdf) copy_compute_s2 was not "
               "able to deduce the actiopns needed for the given type.");
         }

stan/math/prim/fun/promote_scalar.hpp

@@ -45,7 +45,7 @@ inline constexpr auto promote_scalar(UnPromotedTypes&& x) {
   } else if constexpr (is_stan_scalar_v<UnPromotedTypes>) {
     return PromotionScalars(std::forward<UnPromotedTypes>(x));
   } else {
-    static_assert(sizeof(UnPromotedTypes*) == 0,
+    static_assert(sizeof(std::decay_t<UnPromotedTypes>*) == 0,
                   "Missed type in promote_scalar!");
   }
 }

stan/math/prim/fun/scalar_seq_view.hpp

@@ -126,7 +126,7 @@ class scalar_seq_view<C, require_t<std::is_pointer<C>>> {
    */
   inline auto operator[](size_t i) const { return c_[i]; }
   inline auto size() const noexcept {
-    static_assert(sizeof(C*) == 0,
+    static_assert(sizeof(std::decay_t<C>*) == 0,
                   "Cannot Return Size of scalar_seq_view with pointer type");
   }
   inline const auto* data() const noexcept { return &c_[0]; }