[clang] Fix a misadjusted path style comparison in a unittest

[mstorsjo]

Summary

This was changed incorrectly by accident in
99023627010bbfefb71e25a2b4d056de1cbd354e.

[mstorsjo]

Ping @dexonsmith

[dexonsmith]

LGTM; sorry for missing this previously! (I'd have been happy for you to commit this without review, BTW, since it seems a bit obvious, but no excuse of course for me being slow...)

[mstorsjo]

Yeah I guess I should have just committed this as trivial. Anyway, it doesn't seem to have had any notable impact on anything - luckily.

clang/unittests/Driver/ToolChainTest.cpp

std::unique_ptr<Compilation> C(TheDriver.BuildCompilation(
       {"-fsyntax-only", "--gcc-toolchain=", "foo.cpp"}));
   EXPECT_TRUE(C);
 
   std::string S;
   {
     llvm::raw_string_ostream OS(S);
     C->getDefaultToolChain().printVerboseInfo(OS);
   }
-  if (is_style_windows(llvm::sys::path::Style::windows))
+  if (is_style_windows(llvm::sys::path::Style::native))
     std::replace(S.begin(), S.end(), '\\', '/');
   EXPECT_EQ("Found candidate GCC installation: "
             "/home/test/bin/../lib/gcc/arm-linux-gnueabi/4.6.1\n"
             "Selected GCC installation: "
             "/home/test/bin/../lib/gcc/arm-linux-gnueabi/4.6.1\n"
             "Candidate multilib: .;@m32\n"
             "Selected multilib: .;@m32\n",
             S);