Unable to read the numeric literals `#d+inf.0` and `#b+inf.0`

[wtokuno]

1. When I enter the expression #d+inf.0, I get the following error:

   > #d+inf.0
   ERROR on line 12: invalid complex numeric syntax: #\n
   >
   

2. Entering the expression #b+inf.0 will result in the following error:

   > #b+inf.0
   ERROR on line 11: found non-base 10 complex
   > ERROR: undefined variable: nf.0
   

   The same is true if you add #o or #x instead of #b as a prefix.

[ashinn]

That's exceedingly pointless syntax, but technically allowed by the standard, I'll add support when I get time.