Matthias Krüger cd93114deb
Rollup merge of #119725 - compiler-errors:has_effect_param, r=fmease
Add helper for when we want to know if an item has a host param

r? ````@fmease```` since you're a good reviewer and no good deed goes unpunished

This helper will see far more usages as built-in traits get constified.
2024-01-09 00:19:36 +01:00
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2023-11-16 16:49:22 +11:00
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