test.java.file
  EXPRESSION_STATEMENT
    ASSIGNMENT_EXPRESSION
      REFERENCE_EXPRESSION
        REFERENCE_PARAMETER_LIST
          <empty list>
        IDENTIFIER
      EQ
      LITERAL_EXPRESSION
        INTEGER_LITERAL
    SEMICOLON
  WHITE_SPACE
  DECLARATION_STATEMENT
    LOCAL_VARIABLE
      MODIFIER_LIST
        <empty list>
      TYPE
        INT_KEYWORD
      WHITE_SPACE
      IDENTIFIER
      EQ
      LITERAL_EXPRESSION
        INTEGER_LITERAL
      SEMICOLON