beforeSynthetic property
      
      Token?
      get
      beforeSynthetic
      
    
    
The token before this synthetic token,
or null if this is not a synthetic ), ], }, or > token.
Implementation
Token? get beforeSynthetic;
      
      set
      beforeSynthetic
      (Token? previous) 
      
    
    
Set token before this synthetic ), ], }, or > token,
and ignored otherwise.
Implementation
set beforeSynthetic(Token? previous);