Implement `direction` property (#906)
1<test name="flex_grow_root_minimized__content_box_ltr" use-rounding="true">
2 <viewport width="max-content" height="max-content"/>
3 <input>
4 <div box-sizing="content-box" direction="ltr" flex-direction="column" width="100px" min-height="100px" max-height="500px">
5 <div box-sizing="content-box" direction="ltr" flex-direction="column" flex-grow="1" min-height="100px" max-height="500px">
6 <div box-sizing="content-box" direction="ltr" flex-grow="1" flex-basis="200px"/>
7 <div box-sizing="content-box" direction="ltr" height="100px"/>
8 </div>
9 </div>
10 </input>
11 <expectations>
12 <node x="0" y="0" width="100" height="300">
13 <node x="0" y="0" width="100" height="300">
14 <node x="0" y="0" width="100" height="200"/>
15 <node x="0" y="200" width="100" height="100"/>
16 </node>
17 </node>
18 </expectations>
19</test>