Error highlighting not cleared

[Novack]

Environment data

.NET Command Line Tools (1.0.0-preview2-003133)
Product Information:
Version: 1.0.0-preview2-003133
Commit SHA-1 hash: 74df06500c

Runtime Environment:
OS Name: Windows
OS Version: 6.1.7601
OS Platform: Windows
RID: win7-x64

VS Code version: 1.6.1
C# Extension version: 1.5.0-beta4

Steps to reproduce

Produce any syntax error and fix it. The error underlyning ribbon will not clear.
A good example is when you dont have the namespace for the introduced class, then fix it with the Ctrl+. suggestion. It wont clear. Then if you brear the sentence with a different type of error, like an unrecognized symbol, and then fix it, the error highlighting will clear correctly.

Expected behavior

Error highlighting should clear as soon as fixing any error.

Actual behavior

Read above, in "Steps to Reproduce".

[DustinCampbell]

Should be fixed in our next release (1.5.2), which will be going out sometime later today.