Function replaceIndexedAccess

test/fixtures/snapshot/typescript.js:58451–58456

(instantiable, type, replacement)

            }
        }
        function replaceIndexedAccess(instantiable, type, replacement) {
            // map type.indexType to 0
            // map type.objectType to `[TReplacement]`
            // thus making the indexed access `[TReplacement][0]` or `TReplacement`
            return instantiateType(instantiable, createTypeMapper([type.indexType, type.objectType], [getNumberLiteralType(0), createTupleType([replacement])]));
        }
        function resolveReverseMappedTypeMembers(type) {
            var indexInfo = getIndexInfoOfType(type.source, stringType);
            var modifiers = getMappedTypeModifiers(type.mappedType);