[libcxx] updates regular_invocable test to actually test regular_invocable

The test wasn't previously testing this concept, but its base.

Differential Revision: https://reviews.llvm.org/D99306

Author: cjdb

libcxx/test/std/concepts/callable/invocable.compile.pass.cpp

@@ -20,13 +20,15 @@
 
 #include "functions.h"
 
+// clang-format off
 template <class F, class... Args>
-requires std::invocable<F, Args...> constexpr void
-ModelsInvocable(F, Args&&...) noexcept{};
+requires std::invocable<F, Args...>
+constexpr void ModelsInvocable(F, Args&&...) noexcept{}
 
 template <class F, class... Args>
-requires(!std::invocable<F, Args...>) constexpr
-    void NotInvocable(F, Args&&...) noexcept {}
+requires(!std::invocable<F, Args...>)
+constexpr void NotInvocable(F, Args&&...) noexcept {}
+// clang-format on
 
 static_assert(!std::invocable<void>);
 static_assert(!std::invocable<void*>);

libcxx/test/std/concepts/callable/regularinvocable.compile.pass.cpp

@@ -19,19 +19,21 @@
 
 #include "functions.h"
 
+// clang-format off
 template <class F, class... Args>
-requires std::invocable<F, Args...> constexpr void
-ModelsRegularInvocable(F, Args&&...) noexcept{};
+requires std::regular_invocable<F, Args...>
+constexpr void ModelsRegularInvocable(F, Args&&...) noexcept {}
 
 template <class F, class... Args>
-requires(!std::invocable<F, Args...>) constexpr
-    void NotRegularInvocable(F, Args&&...) noexcept {}
+requires (!std::regular_invocable<F, Args...>)
+constexpr void NotRegularInvocable(F, Args&&...) noexcept {}
+// clang-format on
 
-static_assert(!std::invocable<void>);
-static_assert(!std::invocable<void*>);
-static_assert(!std::invocable<int>);
-static_assert(!std::invocable<int&>);
-static_assert(!std::invocable<int&&>);
+static_assert(!std::regular_invocable<void>);
+static_assert(!std::regular_invocable<void*>);
+static_assert(!std::regular_invocable<int>);
+static_assert(!std::regular_invocable<int&>);
+static_assert(!std::regular_invocable<int&&>);
 
 int main(int, char**) {
   {