[perl #125976] LTA error message when using special colon method call form

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# New Ticket Created by  Rob Hoelz 
# Please include the string:  [perl #125976]
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For example:

    class Foo { method bar { } }

    Foo.new.bar:;
    ===SORRY!=== Error while compiling <unknown file>
    Confused
    at <unknown file>:1
    ------> F.new.bar:⏏;
        expecting any of:
            colon pair

A seasoned Perl 6er will know what's wrong right away, but I'm concerned if 
newbies to the language will try the colon form of a method call as "how you do 
method calls sans parens".