replace code button doesn't work

[terryzfeng]

weird replace comilation errors that are perfectly fine when you remove and then replace shread

/* Play a sine wave at 440Hz for 1 week */
SinOsc osc => dac;
440 => osc.freq;
1::week => now;

[<compiled.code>]:line(1).char(56): syntax error

[terryzfeng]

Fixed!