KtFile: BracketsInDelegate.kt
  PACKAGE_DIRECTIVE
    <empty list>
  IMPORT_LIST
    <empty list>
  PROPERTY
    PsiElement(val)('val')
    PsiWhiteSpace(' ')
    PsiElement(IDENTIFIER)('a')
    PsiWhiteSpace(' ')
    PROPERTY_DELEGATE
      PsiElement(by)('by')
      PsiWhiteSpace(' ')
      CALL_EXPRESSION
        REFERENCE_EXPRESSION
          PsiElement(IDENTIFIER)('A')
        PsiWhiteSpace(' ')
        LAMBDA_ARGUMENT
          LAMBDA_EXPRESSION
            FUNCTION_LITERAL
              PsiElement(LBRACE)('{')
              BLOCK
                <empty list>
              PsiElement(RBRACE)('}')