jsc: Crash in jsc

Detailed report: https://oss-fuzz.com/testcase?key=6567652045619200 Project: jsc Fuzzer: jsfuzzer Job Type: asanjsc Platform Id: linux Crash Type: UNKNOWN READ Crash Address: 0x0e7e9202a9c4 Crash State: jsc JSC::JITCode::execute JSC::Interpreter::executeProgram Sanitizer: address ASAN Regressed:...