message: Revise the EFI binary searching to work correctly
  with swift-5.1-branch lldb.
diff: #include "lldb/Core/PluginManager.h"
  #include "lldb/Core/Section.h"
  #include "lldb/Host/Host.h"
  -#include "lldb/Symbol/LocateSymbolFile.h"
  +#include "lldb/Host/Symbols.h"
  #include "lldb/Symbol/ObjectFile.h"
  #include "lldb/Target/MemoryRegionInfo.h"
  #include "lldb/Target/Target.h"
  @@ -355,14 +355,13 @@ Status ProcessMachCore::DoLoadCore() {
  module_spec.GetArchitecture() = GetTarget().GetArchitecture();
  // Lookup UUID locally, before attempting dsymForUUID like action
  - FileSpecList search_paths =
  - Target::GetDefaultDebugFileSearchPaths();
  module_spec.GetSymbolFileSpec() =
  - Symbols::LocateExecutableSymbolFile(module_spec, search_paths);
  + Symbols::LocateExecutableSymbolFile(module_spec);
  if (module_spec.GetSymbolFileSpec()) {
  ModuleSpec executable_module_spec =
  Symbols::LocateExecutableObjectFile(module_spec);
  - if (FileSystem::Instance().Exists(executable_module_spec.GetFileSpec())) {
  + if (FileSystem::Instance().Exists(
  + executable_module_spec.GetFileSpec())) {
  module_spec.GetFileSpec() =
  executable_module_spec.GetFileSpec();
  }
  