JavaScript errors during blocks

[cdsmith]

Reported by another user:

Critical error
blockly_compressed.js:1239 Object {blank: Scheme, codeWorldLogo: Scheme, circle: Scheme, solidCircle: Scheme, thickCircle: Scheme…}
blockly_compressed.js:1239 Types do not match, when trying to type Program
blockly_compressed.js:1207 Uncaught TypeError: Cannot read property 'isTypeVar' of undefined

[cdsmith]

Some of these seem to just be console.log statements, rather than errors. It's not clear to me if they are connected to actual bugs, but it seems likely.

[cdsmith]

I definitely see these in cases where other weird things are happening... I'm adding the priority tag, and will try to look into this.