Added support for single arg no parenthesis message arguments within
multi arg no parenthesises messages. This makes the following examples
likely to be more intuitive:

if someCondition, write "True message"
Previous: (if someCondition, write) ("True message")
Now: (if someCondition, (write "True message"))

if someCondition, write "True message" Else write "False message"
Previous: compilation error at Else
Now: (if someCondition, (write "True message") Else (write "False
message"))
Signed-off-by: Jakob Brandsborg Ehmsen <jakobehmsen.github@gmail.com>