do loop example in quickstart tutorial is broken

[Terry Cavanagh]

This one:

var x = 5;
do {
 x++;
 trace(x);
} while (x<10)

Gives this error:

 line 2 : PARSER ERROR in processing script file.
Unexpected "{" in line 2:
"do {", characters 3-4

(I never use this style of looping normally)