fixed order of includes

Author: RoseZhang03

libc/src/__support/libc_assert.h

@@ -20,8 +20,8 @@
 
 #else // Not LIBC_COPT_USE_C_ASSERT
 
-#include "src/__support/OSUtil/io.h"
 #include "src/__support/OSUtil/exit.h"
+#include "src/__support/OSUtil/io.h"
 #include "src/__support/integer_to_string.h"
 #include "src/__support/macros/attributes.h" // For LIBC_INLINE
 

libc/src/stdlib/quick_exit.h

@@ -18,4 +18,3 @@ namespace LIBC_NAMESPACE {
 } // namespace LIBC_NAMESPACE
 
 #endif // LLVM_LIBC_SRC_STDLIB_QUICK_EXIT_H
-

libc/test/IntegrationTest/test.h

@@ -9,8 +9,8 @@
 #ifndef LLVM_LIBC_UTILS_INTEGRATION_TEST_TEST_H
 #define LLVM_LIBC_UTILS_INTEGRATION_TEST_TEST_H
 
-#include "src/__support/OSUtil/io.h"
 #include "src/__support/OSUtil/exit.h"
+#include "src/__support/OSUtil/io.h"
 
 #define __AS_STRING(val) #val
 #define __CHECK_TRUE(file, line, val, should_exit)                             \

libc/test/src/stdlib/quick_exit_test.cpp

@@ -6,8 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "src/stdlib/quick_exit.h"
 #include "src/stdlib/exit.h"
+#include "src/stdlib/quick_exit.h"
 #include "test/UnitTest/Test.h"
 
 TEST(LlvmLibcStdlib, quick_exit) {