Wed Feb 21 12:15:05 CST 2007 v1.08
- The "fields" field of ClassDecl AST for class containing main program now
  contains and empty AbstractList(), rather than null.  This is more
  consistent with the other classes.
- A Grammar error involving array allocation has been corrected.
  MiniJava should allow allocation of arrays one dimension at a time;
  thus,
	int[][] x = new int[5][];
  should be allowed, but
	int[][] x = new int[5][10];
  should not.  Prior version of reference implementation incorrectly parsed
  this as int[5] allocating a one-dimensional array, and the [6] as a
  subscripting of the expression "new int[5]".