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Thanks for your suggestion. Your code output the following:
Ambiguous call resolved as CORE::each(), qualify as such or use & at a +mbiguous_calls.pl line 12. Ambiguous call resolved as CORE::chop(), qualify as such or use & at a +mbiguous_calls.pl line 18. dump() better written as CORE::dump() at ambiguous_calls.pl line 19. Ambiguous call resolved as CORE::dump(), qualify as such or use & at a +mbiguous_calls.pl line 19. name: Ken Takakura main::our() was called at ambiguous_calls.pl line 8. Use of uninitialized value $person{"name"} in scalar chop at ambiguous +_calls.pl line 18. Abort

This result shows us that delete and our belong to "weak keywords", and each, chop and dump don't.

The following was quoted from regen/keywords.pl:

145: -chop 160: +delete 163: -dump 164: -each 261: +our

Plus (+) signs maybe mean "weak".

Your comment meant a lot to me :)

In reply to Re^2: 'Ambiguous call' diagnosis seems ambiguous by anazawa
in thread 'Ambiguous call' diagnosis seems ambiguous by anazawa

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