[libc++] Granularize more of <type_traits>

Reviewed By: ldionne, #libc

Spies: libcxx-commits, mgorny

Differential Revision: https://reviews.llvm.org/D126244

NOKEYCHECK=True
GitOrigin-RevId: 30c37fb89cb7d6cc02e92a7e81abcec5a1a4a38a
diff --git a/include/module.modulemap b/include/module.modulemap
index d186ebe..ba1d0ff 100644
--- a/include/module.modulemap
+++ b/include/module.modulemap
@@ -987,33 +987,61 @@
     export functional.__functional.unwrap_ref
     export *
 
+    module add_const                  { private header "__type_traits/add_const.h" }
+    module add_cv                     { private header "__type_traits/add_cv.h" }
+    module add_lvalue_reference       { private header "__type_traits/add_lvalue_reference.h" }
     module add_pointer                { private header "__type_traits/add_pointer.h" }
+    module add_rvalue_reference       { private header "__type_traits/add_rvalue_reference.h" }
+    module add_volatile               { private header "__type_traits/add_volatile.h" }
     module conditional                { private header "__type_traits/conditional.h" }
     module decay                      { private header "__type_traits/decay.h" }
     module enable_if                  { private header "__type_traits/enable_if.h" }
+    module extent                     { private header "__type_traits/extent.h" }
     module integral_constant          { private header "__type_traits/integral_constant.h" }
+    module is_abstract                { private header "__type_traits/is_abstract.h" }
+    module is_aggregate               { private header "__type_traits/is_aggregate.h" }
+    module is_arithmetic              { private header "__type_traits/is_arithmetic.h" }
     module is_array                   { private header "__type_traits/is_array.h" }
     module is_base_of                 { private header "__type_traits/is_base_of.h" }
+    module is_bounded_array           { private header "__type_traits/is_bounded_array.h" }
     module is_callable                { private header "__type_traits/is_callable.h" }
+    module is_class                   { private header "__type_traits/is_class.h" }
+    module is_compound                { private header "__type_traits/is_compound.h" }
     module is_const                   { private header "__type_traits/is_const.h" }
     module is_convertible             { private header "__type_traits/is_convertible.h" }
+    module is_empty                   { private header "__type_traits/is_empty.h" }
+    module is_enum                    { private header "__type_traits/is_enum.h" }
+    module is_final                   { private header "__type_traits/is_final.h" }
     module is_floating_point          { private header "__type_traits/is_floating_point.h" }
     module is_function                { private header "__type_traits/is_function.h" }
+    module is_fundamental             { private header "__type_traits/is_fundamental.h" }
     module is_integral                { private header "__type_traits/is_integral.h" }
     module is_member_function_pointer { private header "__type_traits/is_member_function_pointer.h" }
     module is_member_object_pointer   { private header "__type_traits/is_member_object_pointer.h" }
+    module is_member_pointer          { private header "__type_traits/is_member_pointer.h" }
     module is_null_pointer            { private header "__type_traits/is_null_pointer.h" }
+    module is_object                  { private header "__type_traits/is_object.h" }
+    module is_pointer                 { private header "__type_traits/is_pointer.h" }
     module is_reference               { private header "__type_traits/is_reference.h" }
     module is_reference_wrapper       { private header "__type_traits/is_reference_wrapper.h" }
     module is_referenceable           { private header "__type_traits/is_referenceable.h" }
     module is_same                    { private header "__type_traits/is_same.h" }
+    module is_scalar                  { private header "__type_traits/is_scalar.h" }
+    module is_signed                  { private header "__type_traits/is_signed.h" }
+    module is_unbounded_array         { private header "__type_traits/is_unbounded_array.h" }
+    module is_union                   { private header "__type_traits/is_union.h" }
+    module is_unsigned                { private header "__type_traits/is_unsigned.h" }
     module is_void                    { private header "__type_traits/is_void.h" }
     module is_volatile                { private header "__type_traits/is_volatile.h" }
+    module rank                       { private header "__type_traits/rank.h" }
+    module remove_all_extents         { private header "__type_traits/remove_all_extents.h" }
     module remove_const               { private header "__type_traits/remove_const.h" }
     module remove_cv                  { private header "__type_traits/remove_cv.h" }
     module remove_extent              { private header "__type_traits/remove_extent.h" }
+    module remove_pointer             { private header "__type_traits/remove_pointer.h" }
     module remove_reference           { private header "__type_traits/remove_reference.h" }
     module remove_volatile            { private header "__type_traits/remove_volatile.h" }
+    module type_identity              { private header "__type_traits/type_identity.h" }
   }
   module typeindex {
     header "typeindex"