[cvs-nhc98] patch applied (hat): Add option -showtype to compiler. Effect: just reports the type of " main"

[Malcolm Wallace]

Fri Sep  1 07:57:35 PDT 2000  malcolm
  * Add option -showtype to compiler.  Effect: just reports the type of "main"
  and does not generate any code.

    M ./src/compiler98/Flags.hs -66 +71
    M ./src/compiler98/TypeLib.hs -23 +35
    M ./src/hattrans/Flags.hs -66 +71