Add primitive tok(type[, value]) instead of some()

[GoogleCodeExporter]

`some` is potentially slower than `tok` and not acceptable for the grammar 
class analysis.

Original issue reported on code.google.com by andrey.vlasovskikh on 26 May 2011 at 10:49

[GoogleCodeExporter]

Done in [aef2844d84ae].

Original comment by andrey.vlasovskikh on 26 May 2011 at 10:50

• Changed state: Fixed
• Added labels: Type-Enhancement
• Removed labels: Type-Defect