Update libcxx/test/std/input.output/iostream.format/input.streams/istream.unformatted/ignore.char_type.pass.cpp

Zingam · frederick-vs-ja · H-G-Hristov · commit ee72bb4f5fde · 2025-07-22T19:26:03.000+03:00
Co-authored-by: A. Jiang &lt;de34@live.cn&gt;
diff --git a/libcxx/test/std/input.output/iostream.format/input.streams/istream.unformatted/ignore.char_type.pass.cpp b/libcxx/test/std/input.output/iostream.format/input.streams/istream.unformatted/ignore.char_type.pass.cpp
@@ -8,6 +8,7 @@
 
 // Requires 396145d in the built library.
 // XFAIL: using-built-library-before-llvm-9
+// XFAIL: FROZEN-CXX03-HEADERS-FIXME
 
 // <istream>
 
