compile fail when import types with decorator

[zhang740]

TypeScript Version: 3.0.0-dev.20180602

Search Terms:
import types with decorator

Code

export class A {
  @test
  b: import('./b').B
}

// tsconfig.json:
{
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true,
    ...
}

Expected behavior:

• compile success
• the design:type of property b is B.

Actual behavior:

when tsc output:

Error: Debug Failure. Unexpected node.
Node 179 was unexpected.

Playground Link:
N/A

Related Issues:
N/A

[mhegazy]

First we should not fail, second the resulting type would be Object at runtime, since there is no value to reference in the decorator meta data.