Quick Fix for PSAvoidUsingAliases rule replaces the entire command

[kapilmb]

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System Details

• Operating system name and version: Microsoft Windows NT 10.0.14393.0
• VS Code version: 1.8.0
• PowerShell extension version: 0.8.0
• Output from $PSVersionTable:

Name                           Value
----                           -----
PSVersion                      5.1.14393.206
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.14393.206
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

Issue Description