[PATCH] GCC compatibility: Ignore -finput_charset=UTF-8 argument. It is the default in Clang.Currently, we fail with an error.

[Rafael Ávila de Espíndola]

The formatting looks a bit funny too.

LGTM with the patch clang-formated.

================
Comment at: lib/Driver/Tools.cpp:3917
@@ +3916,3 @@
+          options::OPT_finput_charset_EQ)) {
+      StringRef value = inputCharset->getValue();
+      if (value != "UTF-8")
----------------
Value

http://reviews.llvm.org/D4347