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fix #18886 crash on ambiguous proc cast (#20472)

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* fix #18886 crash on ambiguous proc cast

* follow suggestion
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Bung 2022-10-10 17:09:54 +08:00 • committed by GitHub
commit db3d2971cf
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3 changed files with 29 additions and 2 deletions
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18
tests/errmsgs/t18886.nim Normal file
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@ -0,0 +1,18 @@
discard """
cmd: "nim check --hints:off $file"
errormsg: ""
nimout: '''
t18886.nim(18, 24) Error: ambiguous identifier: 'bar' -- you need a helper proc to disambiguate the following:
t18886.bar: proc (i: ptr int){.noSideEffect, gcsafe, locks: 0.}
t18886.bar: proc (i: ptr char){.noSideEffect, gcsafe, locks: 0.}
'''
"""
type Foo = (proc(_: pointer): void)
proc bar(i: ptr[int]) = discard
proc bar(i: ptr[char]) = discard
let fooBar = cast[Foo](bar)