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fix #19678 Broken behavior with string ranges in case labels (#20475)

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* fix #19678 Broken behavior with string ranges in case labels

* Update compiler/semtypes.nim

Co-authored-by: Andreas Rumpf <rumpf_a@web.de>

Co-authored-by: Andreas Rumpf <rumpf_a@web.de>
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Bung 2022-10-02 00:17:07 +08:00 • committed by GitHub
commit cbd9fee22a
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compiler/semtypes.nim
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@ -554,6 +554,8 @@ proc semBranchRange(c: PContext, t, a, b: PNode, covered: var Int128): PNode =
checkMinSonsLen(t, 1, c.config)
let ac = semConstExpr(c, a)
let bc = semConstExpr(c, b)
if ac.kind in {nkStrLit..nkTripleStrLit} or bc.kind in {nkStrLit..nkTripleStrLit}:
localError(c.config, b.info, "range of string is invalid")
let at = fitNode(c, t[0].typ, ac, ac.info).skipConvTakeType
let bt = fitNode(c, t[0].typ, bc, bc.info).skipConvTakeType