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Argument of any no longer matches <T>(x: T) => T in overload set #39208

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@sandersn

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@sandersn

Based on code from knockout on DT:

interface Punch {
    <T>(value: T): T;
    <T = any>(value: null): T | null
}
function x(p: Punch) {
  var wat = p<number>(5 as any)
  var wit = p<number>('hi')
  var wot = p<number>(5)
}

Expected behavior:

wat: number, wit: number, wot: number

Actual behavior:

wat: number | null, wit: number | null, wot: number

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    BugA bug in TypeScriptRescheduledThis issue was previously scheduled to an earlier milestone

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