================================================================================
Preprocessor import: string literal
================================================================================

#import "bar.h"

--------------------------------------------------------------------------------

(translation_unit
  (preproc_import
    path: (string_literal)))

================================================================================
Preprocessor import: system lib string
================================================================================

#import <foo/bar.h>

--------------------------------------------------------------------------------

(translation_unit
  (preproc_import
    path: (system_lib_string)))

================================================================================
Preprocessor import and __has_include: system lib string
================================================================================

#if __has_include(<foo/bar.h>)
#import <foo/bar.h>
#endif

--------------------------------------------------------------------------------

(translation_unit
  (preproc_import
    path: (system_lib_string)))

================================================================================
Module import
================================================================================

@import foo.bar

--------------------------------------------------------------------------------

(translation_unit
  (module_import
    (module_string)))