make pragma expression parsing use the same parser mechanism as elsewhere
make pragma expression parsing use the same parser mechanism as elsewhere

russpowers/Nim,dom96/Nim,russpowers/Nim,dom96/Nim,dom96/Nim,russpowers/Nim,dom96/Nim,russpowers/Nim,dom96/Nim,dom96/Nim,tulayang/Nim,tulayang/Nim,tulayang/Nim,dom96/Nim,tulayang/Nim,tulayang/Nim,tulayang/Nim,russpowers/Nim,russpowers/Nim,russpowers/Nim