Mark some localization monetary tests as XFAIL on linux.

This marks some of the localization test XFAIL on linux.
There has been some discussion on D4861 about doing this.
Please let me know if any of these tests for you on linux.

llvm-svn: 216150

libcxx/test/localization/locale.categories/category.monetary/locale.money.get/locale.money.get.members/get_long_double_ru_RU.pass.cpp

@@ -9,6 +9,12 @@
 //
 // XFAIL: apple-darwin
 
+// Failure related to GLIBC's use of U00A0 as mon_thousands_sep
+// and U002E as mon_decimal_point.
+// TODO: U00A0 should be investigated.
+// Possibly related to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=16006
+// XFAIL: linux
+
 // REQUIRES: locale.ru_RU.UTF-8
 
 // <locale>

libcxx/test/localization/locale.categories/category.monetary/locale.money.put/locale.money.put.members/put_long_double_ru_RU.pass.cpp

@@ -9,6 +9,12 @@
 //
 // XFAIL: apple-darwin
 
+// Failure related to GLIBC's use of U00A0 as mon_thousands_sep
+// and U002E as mon_decimal_point.
+// TODO: U00A0 should be investigated.
+// Possibly related to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=16006
+// XFAIL: linux
+
 // REQUIRES: locale.ru_RU.UTF-8
 
 // <locale>

libcxx/test/localization/locale.categories/category.monetary/locale.moneypunct.byname/decimal_point.pass.cpp

@@ -7,13 +7,16 @@
 //
 //===----------------------------------------------------------------------===//
 
-// <locale>
-
 // REQUIRES: locale.en_US.UTF-8
 // REQUIRES: locale.fr_FR.UTF-8
 // REQUIRES: locale.ru_RU.UTF-8
 // REQUIRES: locale.zh_CN.UTF-8
 
+// Russia uses ',' for the decimal separator. GLIBC returns '.'
+// XFAIL: linux
+
+// <locale>
+
 // class moneypunct_byname<charT, International>
 
 // charT decimal_point() const;