libcxx: Rename .hpp files in libcxx/test/support to .h

LLVM uses .h as its extension for header files.

Files renamed using:

    for f in libcxx/test/support/*.hpp; do git mv $f ${f%.hpp}.h; done

References to the files updated using:

    for f in $(git diff master | grep 'rename from' | cut -f 3 -d ' '); do
        a=$(basename $f);
        echo $a;
        rg -l $a libcxx | xargs sed -i '' "s/$a/${a%.hpp}.h/";
    done

HPP include guards updated manually using:

    for f in $(git diff master | grep 'rename from' | cut -f 3 -d ' '); do
      echo ${f%.hpp}.h ;
    done | xargs mvim

Differential Revision: https://reviews.llvm.org/D66104

llvm-svn: 369481
diff --git a/libcxx/test/std/input.output/filesystems/fs.enum/enum.copy_options.pass.cpp b/libcxx/test/std/input.output/filesystems/fs.enum/enum.copy_options.pass.cpp
index b949960..7bc129f 100644
--- a/libcxx/test/std/input.output/filesystems/fs.enum/enum.copy_options.pass.cpp
+++ b/libcxx/test/std/input.output/filesystems/fs.enum/enum.copy_options.pass.cpp
@@ -12,7 +12,7 @@
 
 // enum class copy_options;
 
-#include "filesystem_include.hpp"
+#include "filesystem_include.h"
 #include <type_traits>
 #include <cassert>
 
diff --git a/libcxx/test/std/input.output/filesystems/fs.enum/enum.directory_options.pass.cpp b/libcxx/test/std/input.output/filesystems/fs.enum/enum.directory_options.pass.cpp
index 43b0945..44e1c63 100644
--- a/libcxx/test/std/input.output/filesystems/fs.enum/enum.directory_options.pass.cpp
+++ b/libcxx/test/std/input.output/filesystems/fs.enum/enum.directory_options.pass.cpp
@@ -12,7 +12,7 @@
 
 // enum class directory_options;
 
-#include "filesystem_include.hpp"
+#include "filesystem_include.h"
 #include <type_traits>
 #include <cassert>
 #include <sys/stat.h>
diff --git a/libcxx/test/std/input.output/filesystems/fs.enum/enum.file_type.pass.cpp b/libcxx/test/std/input.output/filesystems/fs.enum/enum.file_type.pass.cpp
index c1f1607..097b41c 100644
--- a/libcxx/test/std/input.output/filesystems/fs.enum/enum.file_type.pass.cpp
+++ b/libcxx/test/std/input.output/filesystems/fs.enum/enum.file_type.pass.cpp
@@ -12,7 +12,7 @@
 
 // enum class file_type;
 
-#include "filesystem_include.hpp"
+#include "filesystem_include.h"
 #include <type_traits>
 #include <cassert>
 
diff --git a/libcxx/test/std/input.output/filesystems/fs.enum/enum.path.format.pass.cpp b/libcxx/test/std/input.output/filesystems/fs.enum/enum.path.format.pass.cpp
index d60225d..b00a935 100644
--- a/libcxx/test/std/input.output/filesystems/fs.enum/enum.path.format.pass.cpp
+++ b/libcxx/test/std/input.output/filesystems/fs.enum/enum.path.format.pass.cpp
@@ -13,7 +13,7 @@
 // class path;
 // enum class format;
 
-#include "filesystem_include.hpp"
+#include "filesystem_include.h"
 #include <type_traits>
 #include <cassert>
 
diff --git a/libcxx/test/std/input.output/filesystems/fs.enum/enum.perm_options.pass.cpp b/libcxx/test/std/input.output/filesystems/fs.enum/enum.perm_options.pass.cpp
index 1fd353d..41fb731 100644
--- a/libcxx/test/std/input.output/filesystems/fs.enum/enum.perm_options.pass.cpp
+++ b/libcxx/test/std/input.output/filesystems/fs.enum/enum.perm_options.pass.cpp
@@ -12,7 +12,7 @@
 
 // enum class perm_options;
 
-#include "filesystem_include.hpp"
+#include "filesystem_include.h"
 #include <type_traits>
 #include <cassert>
 #include <sys/stat.h>
diff --git a/libcxx/test/std/input.output/filesystems/fs.enum/enum.perms.pass.cpp b/libcxx/test/std/input.output/filesystems/fs.enum/enum.perms.pass.cpp
index 93b5278..a9613f2 100644
--- a/libcxx/test/std/input.output/filesystems/fs.enum/enum.perms.pass.cpp
+++ b/libcxx/test/std/input.output/filesystems/fs.enum/enum.perms.pass.cpp
@@ -12,7 +12,7 @@
 
 // enum class perms;
 
-#include "filesystem_include.hpp"
+#include "filesystem_include.h"
 #include <type_traits>
 #include <cassert>
 #include <sys/stat.h>