jsc: Segv on unknown address in jsc

Detailed Report: https://oss-fuzz.com/testcase?key=5757079010934784 Project: jsc Fuzzer: jsfuzzer Job Type: asanjsc Platform Id: linux Crash Type: Segv on unknown address Crash Address: Crash State: jsc JSC::JITCode::execute JSC::Interpreter::executeProgram Sanitizer: address ASAN Regressed:...