Component Data - type: 'boolean' should trigger completion without =""

[octref]

For example, now installing element-ui and completing <el-tree expand-on-click-node=""></el-tree>. expand-on-click-node has type boolean and should trigger a completion like expand-on-click-node, not expand-on-click-node="".

[rchl]

I must just add a note that it's a bit of a preference thing too.

Some projects I work with prefer to use :expand-on-click-node="true", to be explicit.

expand-on-click-node="" is wrong for sure as it doesn't start with the colon but I wonder if it would be possible to support both options (expand-on-click-node and :expand-on-click-node="true").

If not then I can live with it I guess. Maybe will consider switching to expand-on-click-node variant.

[rchl]

Thinking more about it, the :expand-on-click-node="" variant would be more universal as the default value is not always false so you might actually want to write :expand-on-click-node="false". Having the short form by default would require more work to switch to the long-form to put false there.

[octref]

the default value is not always false

I'd say that's a minority case. That's not consistent with HTML5's boolean attributes.

When user attempts to type a boolean attribute, I think they are way more likely to use it for the truthy value, so I should make that easier for them.

In majority case, having to delete twice is worse than in the minority case, having to type =".

[rchl]

Yeah, OK.

[octref]

Associated with wrong commit...