[libcxx] Additional 'REQUIRE' directives for tests that require en_US.UTF-8.

Summary:
These are the tests that didn't fail in the release candidate because they were
covered by another 'REQUIRES' directive.

Reviewers: mclow.lists, hans, bcraig, EricWF

Subscribers: EricWF, dim, cfe-commits

Differential Revision: http://reviews.llvm.org/D16408

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@258920 91177308-0d34-0410-b5e6-96231b3b80d8

test/std/localization/locale.categories/category.collate/locale.collate.byname/compare.pass.cpp

@@ -7,6 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// REQUIRES: locale.en_US.UTF-8
+
 // <locale>
 
 // template <class charT> class collate_byname

test/std/localization/locale.categories/category.ctype/locale.ctype.byname/tolower_1.pass.cpp

@@ -7,6 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// REQUIRES: locale.en_US.UTF-8
+
 // <locale>
 
 // template <class charT> class ctype_byname;

test/std/localization/locale.categories/category.ctype/locale.ctype.byname/tolower_many.pass.cpp

@@ -7,6 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// REQUIRES: locale.en_US.UTF-8
+
 // <locale>
 
 // template <class charT> class ctype_byname;

test/std/localization/locale.categories/category.ctype/locale.ctype.byname/toupper_1.pass.cpp

@@ -7,6 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// REQUIRES: locale.en_US.UTF-8
+
 // <locale>
 
 // template <class charT> class ctype_byname;

test/std/localization/locale.categories/category.ctype/locale.ctype.byname/toupper_many.pass.cpp

@@ -7,6 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// REQUIRES: locale.en_US.UTF-8
+
 // <locale>
 
 // template <class charT> class ctype_byname;

test/std/localization/locale.categories/category.ctype/locale.ctype.byname/widen_1.pass.cpp

@@ -7,6 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// REQUIRES: locale.en_US.UTF-8
+
 // <locale>
 
 // template <class charT> class ctype_byname;

test/std/localization/locale.categories/category.ctype/locale.ctype.byname/widen_many.pass.cpp

@@ -7,6 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
+// REQUIRES: locale.en_US.UTF-8
+
 // <locale>
 
 // template <class charT> class ctype_byname;