Version Used: 15.6 Preview 2

Steps to Reproduce:

1. Create a library which has [assembly: SuppressIldasm] applied to it
2. In a separate project, add a reference to the assembly produced by step 1
3. Invoke a method defined in the library, and use Go To Definition

Expected Behavior:

The metadata as source window appears, without showing decompiled method bodies.

Actual Behavior:

The code runs through ILSpy and shows decompiled method bodies.