3rdparty/sol2: Worked around apparent regression in clang 18.

When taking a pointer to a static member function template in a class
template, clang reports a substitution error if the noexcept
specification uses an expression that depends on class template
arguments.

See llvm/llvm-project#91362 on GitHub.

Author: cuavas

3rdparty/sol2/sol/sol.hpp

@@ -19456,7 +19456,13 @@ namespace sol { namespace function_detail {
 		}
 
 		template <bool is_yielding, bool no_trampoline>
-		static int call(lua_State* L) noexcept(std::is_nothrow_copy_assignable_v<T>) {
+		static int call(lua_State* L)
+#if SOL_IS_ON(SOL_COMPILER_CLANG)
+		// apparent regression in clang 18 - llvm/llvm-project#91362
+#else
+			noexcept(std::is_nothrow_copy_assignable_v<T>)
+#endif
+		{
 			int nr;
 			if constexpr (no_trampoline) {
 				nr = real_call(L);