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fix #16150 improve type mismatch errors (#16152)

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* fix #16150 improve type mismatch errors

* allow -d:nimLegacyTypeMismatch

* address comment
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Timothee Cour 2020-12-09 07:19:39 -08:00 • committed by GitHub
commit f344a70412
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7 changed files with 14 additions and 7 deletions
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compiler/semcall.nim
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@ -476,7 +476,7 @@ proc inferWithMetatype(c: PContext, formal: PType,
result.typ = generateTypeInstance(c, m.bindings, arg.info,
formal.skipTypes({tyCompositeTypeClass}))
else:
typeMismatch(c.config, arg.info, formal, arg.typ)
typeMismatch(c.config, arg.info, formal, arg.typ, arg)
# error correction:
result = copyTree(arg)
result.typ = formal