Good point. That's the drawback where edge-cases can add a lot of complexity.
Perhaps throw an exception? Allow annotations on how to resolve (see below)? Implicit rules? — down the rabbit hole of smart-matching :(

Example: Resolve overloaded @{} by using the standard notation as a hint like so? 

$it->@( $key [$idx] section $i some.doc method1() sub1(5) method2($x) 
+);

[download]
It should be rarely needed.

In reply to Re^3: What esteemed monks think about changes necessary/desirable in Perl 7 outside of OO staff by Perlbotics
in thread What esteemed monks think about changes necessary/desirable in Perl 7 outside of OO staff by likbez

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