[libc++][modules] Fix missing and incorrect includes (#108850)

This patch adds a large number of missing includes in the libc++ headers
and the test suite. Those were found as part of the effort to move
towards a mostly monolithic top-level std module.

4 files changed, 11 insertions, 4 deletions

diff --git a/libcxx/test/std/utilities/function.objects/bind/func.bind/func.bind.isbind/is_bind_expression.pass.cpp b/libcxx/test/std/utilities/function.objects/bind/func.bind/func.bind.isbind/is_bind_expression.pass.cpp
index 5940988..25ee761 100644
--- a/libcxx/test/std/utilities/function.objects/bind/func.bind/func.bind.isbind/is_bind_expression.pass.cpp
+++ b/libcxx/test/std/utilities/function.objects/bind/func.bind/func.bind.isbind/is_bind_expression.pass.cpp
@@ -13,6 +13,8 @@
 // template<class T> struct is_bind_expression
 
 #include <functional>
+#include <type_traits>
+
 #include "test_macros.h"
 
 template <bool Expected, class T>
diff --git a/libcxx/test/std/utilities/function.objects/bind/func.bind/func.bind.isplace/is_placeholder.pass.cpp b/libcxx/test/std/utilities/function.objects/bind/func.bind/func.bind.isplace/is_placeholder.pass.cpp
index 1e85ca7..48ce625 100644
--- a/libcxx/test/std/utilities/function.objects/bind/func.bind/func.bind.isplace/is_placeholder.pass.cpp
+++ b/libcxx/test/std/utilities/function.objects/bind/func.bind/func.bind.isplace/is_placeholder.pass.cpp
@@ -11,6 +11,8 @@
 // struct is_placeholder
 
 #include <functional>
+#include <type_traits>
+
 #include "test_macros.h"
 
 template <int Expected, class T>
diff --git a/libcxx/test/std/utilities/function.objects/unord.hash/enum.pass.cpp b/libcxx/test/std/utilities/function.objects/unord.hash/enum.pass.cpp
index 54e9f25..fd1fbe5 100644
--- a/libcxx/test/std/utilities/function.objects/unord.hash/enum.pass.cpp
+++ b/libcxx/test/std/utilities/function.objects/unord.hash/enum.pass.cpp
@@ -12,12 +12,14 @@
 
 // Make sure that we can hash enumeration values.
 
-#include "test_macros.h"
-
 #include <functional>
 #include <cassert>
-#include <type_traits>
+#include <cstddef>
+#include <cstdint>
 #include <limits>
+#include <type_traits>
+
+#include "test_macros.h"
 
 enum class Colors { red, orange, yellow, green, blue, indigo, violet };
 enum class Cardinals { zero, one, two, three, five=5 };
diff --git a/libcxx/test/std/utilities/function.objects/unord.hash/integral.pass.cpp b/libcxx/test/std/utilities/function.objects/unord.hash/integral.pass.cpp
index 4d6bc17..14af709 100644
--- a/libcxx/test/std/utilities/function.objects/unord.hash/integral.pass.cpp
+++ b/libcxx/test/std/utilities/function.objects/unord.hash/integral.pass.cpp
@@ -19,9 +19,10 @@
 
 #include <functional>
 #include <cassert>
-#include <type_traits>
 #include <cstddef>
+#include <cstdint>
 #include <limits>
+#include <type_traits>
 
 #include "test_macros.h"