Function createCombinedSymbolForOverloadFailure

test/fixtures/snapshot/typescript.js:76374–76377

(sources, type)

            return createCombinedSymbolForOverloadFailure(sources, getUnionType(types, 2 /* UnionReduction.Subtype */));
        }
        function createCombinedSymbolForOverloadFailure(sources, type) {
            // This function is currently only used for erroneous overloads, so it's good enough to just use the first source.
            return createSymbolWithType(ts.first(sources), type);
        }
        function pickLongestCandidateSignature(node, candidates, args, checkMode) {
            // Pick the longest signature. This way we can get a contextual type for cases like:
            //     declare function f(a: { xa: number; xb: number; }, b: number);