message: [test] Use correct macro in FileCollectorTest.cpp
  This test was supposed to be skipped on Windows but was using the wrong
  macro name.
diff: @@ -151,7 +151,7 @@ TEST(FileCollectorTest, CopyFiles) {
  EXPECT_FALSE(ec);
  }
  -#ifndef WINDOWS
  +#ifndef _WIN32
  TEST(FileCollectorTest, Symlinks) {
  // Root where the original files live.
  ScopedDir file_root("file_root", true);
  