=== tests/cases/compiler/intersectionsOfLargeUnions.ts ===
// Repro from #23977

export function assertIsElement(node: Node | null): node is Element {
>assertIsElement : (node: Node | null) => node is Element
>node : Node | null
>null : null

    let nodeType = node === null ? null : node.nodeType;
>nodeType : number | null
>node === null ? null : node.nodeType : number | null
>node === null : boolean
>node : Node | null
>null : null
>null : null
>node.nodeType : number
>node : Node
>nodeType : number

    return nodeType === 1;
>nodeType === 1 : boolean
>nodeType : number | null
>1 : 1
}
  
export function assertNodeTagName<
>assertNodeTagName : <T extends "symbol" | "circle" | "clipPath" | "defs" | "desc" | "ellipse" | "feBlend" | "feColorMatrix" | "feComponentTransfer" | "feComposite" | "feConvolveMatrix" | "feDiffuseLighting" | "feDisplacementMap" | "feDistantLight" | "feFlood" | "feFuncA" | "feFuncB" | "feFuncG" | "feFuncR" | "feGaussianBlur" | "feImage" | "feMerge" | "feMergeNode" | "feMorphology" | "feOffset" | "fePointLight" | "feSpecularLighting" | "feSpotLight" | "feTile" | "feTurbulence" | "filter" | "foreignObject" | "g" | "image" | "line" | "linearGradient" | "marker" | "mask" | "metadata" | "path" | "pattern" | "polygon" | "polyline" | "radialGradient" | "rect" | "stop" | "svg" | "switch" | "text" | "textPath" | "tspan" | "use" | "view" | keyof HTMLElementTagNameMap, U extends ElementTagNameMap[T]>(node: Node | null, tagName: T) => node is U

    T extends keyof ElementTagNameMap,
    U extends ElementTagNameMap[T]>(node: Node | null, tagName: T): node is U {
>node : Node | null
>null : null
>tagName : T

    if (assertIsElement(node)) {
>assertIsElement(node) : boolean
>assertIsElement : (node: Node | null) => node is Element
>node : Node | null

        const nodeTagName = node.tagName.toLowerCase();
>nodeTagName : string
>node.tagName.toLowerCase() : string
>node.tagName.toLowerCase : () => string
>node.tagName : string
>node : Element
>tagName : string
>toLowerCase : () => string

         return nodeTagName === tagName;
>nodeTagName === tagName : boolean
>nodeTagName : string
>tagName : T
    }
    return false;
>false : false
}
  
export function assertNodeProperty<
>assertNodeProperty : <T extends "symbol" | "circle" | "clipPath" | "defs" | "desc" | "ellipse" | "feBlend" | "feColorMatrix" | "feComponentTransfer" | "feComposite" | "feConvolveMatrix" | "feDiffuseLighting" | "feDisplacementMap" | "feDistantLight" | "feFlood" | "feFuncA" | "feFuncB" | "feFuncG" | "feFuncR" | "feGaussianBlur" | "feImage" | "feMerge" | "feMergeNode" | "feMorphology" | "feOffset" | "fePointLight" | "feSpecularLighting" | "feSpotLight" | "feTile" | "feTurbulence" | "filter" | "foreignObject" | "g" | "image" | "line" | "linearGradient" | "marker" | "mask" | "metadata" | "path" | "pattern" | "polygon" | "polyline" | "radialGradient" | "rect" | "stop" | "svg" | "switch" | "text" | "textPath" | "tspan" | "use" | "view" | keyof HTMLElementTagNameMap, P extends keyof ElementTagNameMap[T], V extends HTMLElementTagNameMap[T][P]>(node: Node | null, tagName: T, prop: P, value: V) => void

    T extends keyof ElementTagNameMap,
    P extends keyof ElementTagNameMap[T],
    V extends HTMLElementTagNameMap[T][P]>(node: Node | null, tagName: T, prop: P, value: V) {
>node : Node | null
>null : null
>tagName : T
>prop : P
>value : V

    if (assertNodeTagName(node, tagName)) {
>assertNodeTagName(node, tagName) : boolean
>assertNodeTagName : <T extends "symbol" | "circle" | "clipPath" | "defs" | "desc" | "ellipse" | "feBlend" | "feColorMatrix" | "feComponentTransfer" | "feComposite" | "feConvolveMatrix" | "feDiffuseLighting" | "feDisplacementMap" | "feDistantLight" | "feFlood" | "feFuncA" | "feFuncB" | "feFuncG" | "feFuncR" | "feGaussianBlur" | "feImage" | "feMerge" | "feMergeNode" | "feMorphology" | "feOffset" | "fePointLight" | "feSpecularLighting" | "feSpotLight" | "feTile" | "feTurbulence" | "filter" | "foreignObject" | "g" | "image" | "line" | "linearGradient" | "marker" | "mask" | "metadata" | "path" | "pattern" | "polygon" | "polyline" | "radialGradient" | "rect" | "stop" | "svg" | "switch" | "text" | "textPath" | "tspan" | "use" | "view" | keyof HTMLElementTagNameMap, U extends ElementTagNameMap[T]>(node: Node | null, tagName: T) => node is U
>node : Node | null
>tagName : T

        node[prop];
>node[prop] : ElementTagNameMap[T][P]
>node : ElementTagNameMap[T]
>prop : P
    }
}