[libc++][NFC] Run the container tests through clang-format (#126499)

We've been improving these the tests for vector quite a bit and we are
probably not done improving our container tests. Formatting everything
at once will make subsequent reviews easier.

Author: ldionne

libcxx/test/libcxx/containers/associative/map/at.abort.pass.cpp

@@ -23,14 +23,11 @@
 
 #include "test_macros.h"
 
-
-void exit_success(int) {
-    std::_Exit(EXIT_SUCCESS);
-}
+void exit_success(int) { std::_Exit(EXIT_SUCCESS); }
 
 int main(int, char**) {
-    std::signal(SIGABRT, exit_success);
-    std::map<int, int> map;
-    map.at(1);
-    return EXIT_FAILURE;
+  std::signal(SIGABRT, exit_success);
+  std::map<int, int> map;
+  map.at(1);
+  return EXIT_FAILURE;
 }

libcxx/test/libcxx/containers/associative/map/at.const.abort.pass.cpp

@@ -23,14 +23,11 @@
 
 #include "test_macros.h"
 
-
-void exit_success(int) {
-    std::_Exit(EXIT_SUCCESS);
-}
+void exit_success(int) { std::_Exit(EXIT_SUCCESS); }
 
 int main(int, char**) {
-    std::signal(SIGABRT, exit_success);
-    std::map<int, int> const map;
-    map.at(1);
-    return EXIT_FAILURE;
+  std::signal(SIGABRT, exit_success);
+  std::map<int, int> const map;
+  map.at(1);
+  return EXIT_FAILURE;
 }

libcxx/test/libcxx/containers/associative/map/find.modules.compile.pass.mm

@@ -13,6 +13,4 @@
 
 #include <map>
 
-void f(std::map<int, int> const& map, int key) {
-    (void)map.find(key);
-}
+void f(std::map<int, int> const& map, int key) { (void)map.find(key); }

libcxx/test/libcxx/containers/associative/non_const_comparator.incomplete.verify.cpp

@@ -17,31 +17,33 @@
 #include <map>
 #include <functional>
 
-template <template <typename ...> class Container>
+template <template <typename...> class Container>
 void test_set() {
-  struct KeyBase { };
-  struct KeyDerived;  // derives from KeyBase, but incomplete at this point
+  struct KeyBase {};
+  struct KeyDerived; // derives from KeyBase, but incomplete at this point
 
   // Name the type but don't instantiate it.
   using C = Container<KeyDerived*, std::less<KeyBase*>>;
 
   // Instantiate it but don't ODR use any members.
-  typename C::value_type dummy; (void)dummy;
+  typename C::value_type dummy;
+  (void)dummy;
 
   // Complete the types.
-  struct KeyDerived : KeyBase { };
+  struct KeyDerived : KeyBase {};
 
   C c; // ODR use it, which should be OK
 }
 
-template <template <typename ...> class Container>
+template <template <typename...> class Container>
 void test_map() {
-  struct Value { };
-  struct KeyBase { };
+  struct Value {};
+  struct KeyBase {};
   struct KeyDerived;
   using C = Container<KeyDerived*, Value, std::less<KeyBase*>>;
-  typename C::value_type dummy; (void)dummy;
-  struct KeyDerived : KeyBase { };
+  typename C::value_type dummy;
+  (void)dummy;
+  struct KeyDerived : KeyBase {};
   C c;
 }