Get prompt to rename a type when moving it from one folder to another

[davkean]

1. Create a new project with Class1.cs
2. Create a new folder called "Bar"
3. Drag Class1.cs into "Bar"

Expected: No prompt for rename
Actual: Prompt for rename

[davkean]

tag @jinujoseph

[srivatsn]

@jinujoseph is this fixed - I remember some change around this.

[jinujoseph]

nope , this does repro in d15rel/15.0.2006.2

[333fred]

One question I have on this: do we want to do namespace renames? If we move a file from a path that is a valid namespace to a path that is a valid namespace, it seems reasonable that we should prompt to move the namespace the contained class is in.

[davkean]

Move or sync it? My opinion is that I don't think we should ever prompt - we should just add an undo unit so that the user can undo the rename, ie I'm thinking like the "Copy Code -> Paste -> Auto format" behavior we have in Roslyn.

[333fred]

Filled #1035 for that idea.