Update SystemVerilog literal constants (#1460)

The original implementation was missing some of the more arcane features
such as underbars, the character 's' for signed/unsigned, support for
spaces before/after the base specifier, capital letter base specifiers
(ie 'B 'D 'H), and the 4-state 'xXzZ?' characters.

For regular integers, the 'l' and 'L' suffixes are not valid.
That is, unlike C, in Verilog '42L' is not a valid int literal.

Create a new test that exercises most of the interesting kinds of
SystemVerilog numbers.

This fixes a couple minor issues with what type of number the lexer
returns. For example, Numbers like '42' used to return Integer.Hex,
but now return Integer.Decimal.

0 files changed, 0 insertions, 0 deletions