SCS Parser doesn't properly handle floats

[Egon Geerardyn]

The SCS parser doesn't handle floats properly:

Sometimes accepted (depending on context):
floats with exp part or SI scaling:
e.g. 1.1e12
e.g. 1k

Wrongfully accepted
floats with spaces in them
e.g. 1 .1

[Egon Geerardyn (egon-geerardyn-gmail)]

Possible solution:
 - use common lexer rule for idents and general values

Try out in branch Bug607457