LLDB里不支持grep命令，直接command + F搜索，就可以看到：
[374] C7CBAF59-9537-3686-AC95-E6477B7AD6B9 0x000000018a9ec000 /Users/snakeninny/Library/Developer/Xcode/iOS DeviceSupport/9.0.2 (13A452)/Symbols/System/Library/PreferenceBundles/MobileSafariSettings.bundle/MobileSafariSettings