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// |jit-test| error: TypeError
RegExp("(&)??\\1}").test("&D")
"xy".match(/((x)??){2}y/)
"\u66d6J".split(/((\u66d6)??){7}J/)
"2\"".match("(((2)??)+\")")()
// |jit-test| error: TypeError
RegExp("(&)??\\1}").test("&D")
"xy".match(/((x)??){2}y/)
"\u66d6J".split(/((\u66d6)??){7}J/)
"2\"".match("(((2)??)+\")")()