[Help-smalltalk] fix syntax highlighting for unary and binary methods

[Jan Hidders]

Here is the diff for PCode.st. I'm rather new at submitting patches, so please 
be gentle with me. :-)

Another bug I noticed: If I select 'Search' in the class  hierarchy of the the 
namespace browser while I already selected a class, all windows freeze.

Is there a list of bugs somewhere?

Kind regards,

-- Jan Hidders

SyntaxHighlightNonKeywordMethods.diff
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