message: [FileSystem] Change FileSpec constructor signature.
  Fix breakage due to the recent FileSpec change that extracts the path
  resultion logic into FileSystem for the Android host.
diff: @@ -29,7 +29,7 @@ void HostInfoAndroid::ComputeHostArchitectureSupport(ArchSpec &arch_32,
  }
  FileSpec HostInfoAndroid::GetDefaultShell() {
  - return FileSpec("/system/bin/sh", false);
  + return FileSpec("/system/bin/sh");
  }
  FileSpec HostInfoAndroid::ResolveLibraryPath(const std::string &module_path,
  @@ -66,7 +66,8 @@ FileSpec HostInfoAndroid::ResolveLibraryPath(const std::string &module_path,
  ld_paths.push_back(StringRef(*it));
  for (const StringRef &path : ld_paths) {
  - FileSpec file_candidate(path.str().c_str(), true);
  + FileSpec file_candidate(path.str().c_str());
  + FileSystem::Instance().Resolve(file_candidate);
  file_candidate.AppendPathComponent(module_path.c_str());
  if (FileSystem::Instance().Exists(file_candidate))
  @@ -85,7 +86,7 @@ bool HostInfoAndroid::ComputeTempFileBaseDirectory(FileSpec &file_spec) {
  // invalid directory, we substitute the path with /data/local/tmp, which is
  // correct at least in some cases (i.e., when running as shell user).
  if (!success || !FileSystem::Instance().Exists(file_spec))
  - file_spec = FileSpec("/data/local/tmp", false);
  + file_spec = FileSpec("/data/local/tmp");
  return FileSystem::Instance().Exists(file_spec);
  }
  