Function getGlobalNonNullableTypeInstantiation

test/fixtures/snapshot/typescript.js:67639–67651

(type)

            return type.flags & 32768 /* TypeFlags.Undefined */ ? type : getUnionType([type, isProperty ? missingType : undefinedType]);
        }
        function getGlobalNonNullableTypeInstantiation(type) {
            // First reduce away any constituents that are assignable to 'undefined' or 'null'. This not only eliminates
            // 'undefined' and 'null', but also higher-order types such as a type parameter 'U extends undefined | null'
            // that isn't eliminated by a NonNullable<T> instantiation.
            var reducedType = getTypeWithFacts(type, 2097152 /* TypeFacts.NEUndefinedOrNull */);
            if (!deferredGlobalNonNullableTypeAlias) {
                deferredGlobalNonNullableTypeAlias = getGlobalSymbol("NonNullable", 524288 /* SymbolFlags.TypeAlias */, /*diagnostic*/ undefined) || unknownSymbol;
            }
            // If the NonNullable<T> type is available, return an instantiation. Otherwise just return the reduced type.
            return deferredGlobalNonNullableTypeAlias !== unknownSymbol ?
                getTypeAliasInstantiation(deferredGlobalNonNullableTypeAlias, [reducedType]) :
                reducedType;
        }
        function getNonNullableType(type) {
            return strictNullChecks ? getGlobalNonNullableTypeInstantiation(type) : type;
        }