Add a test for long and FMT_BUILTIN_TYPES=0

Author: vitaut

include/fmt/base.h

@@ -239,7 +239,7 @@
 FMT_PRAGMA_GCC(push_options)
 #if !defined(__OPTIMIZE__) && !defined(__CUDACC__) && !defined(FMT_MODULE)
 FMT_PRAGMA_GCC(optimize("Og"))
-#define FMT_GCC_OPTIMIZED
+#  define FMT_GCC_OPTIMIZED
 #endif
 FMT_PRAGMA_CLANG(diagnostic push)
 
@@ -2153,7 +2153,9 @@ template <typename Context> class value {
   constexpr FMT_INLINE value(unsigned short x FMT_BUILTIN) : uint_value(x) {}
   constexpr FMT_INLINE value(int x) : int_value(x) {}
   constexpr FMT_INLINE value(unsigned x FMT_BUILTIN) : uint_value(x) {}
-  FMT_CONSTEXPR FMT_INLINE value(long x FMT_BUILTIN) : value(long_type(x)) {}
+  FMT_CONSTEXPR FMT_INLINE
+  value(conditional_t<long_short || FMT_BUILTIN_TYPES, long, monostate> x)
+      : value(long_type(x)) {}
   FMT_CONSTEXPR FMT_INLINE value(unsigned long x FMT_BUILTIN)
       : value(ulong_type(x)) {}
   constexpr FMT_INLINE value(long long x FMT_BUILTIN) : long_long_value(x) {}

test/no-builtin-types-test.cc

@@ -13,6 +13,7 @@
 
 TEST(no_builtin_types_test, format) {
   EXPECT_EQ(fmt::format("{}", 42), "42");
+  EXPECT_EQ(fmt::format("{}", 42L), "42");
 }
 
 TEST(no_builtin_types_test, double_is_custom_type) {