Rename refactoring for Visualforce components and attributes

[Eric Kintzer]

From time-to-time, VF components need to be developed, lately, for VF email templates where VF is still useful. However, in IC, you can’t rename a VF component like you can an Apex Class or Trigger.

Inspired by this (vain) attempt to rename a VF Component

• I had a VF component named Foo; compiled fine. 
• I decided to refactor (rename) it to Bar 
• As there's no component name like a className, I went to the Project pane, clicked the project file Foo and did Refactor | Rename to Bar.

Result:

• File was renamed to Bar.component; no change to the server
• file's metadata-xml <label> attribute was left as Foo
• Subsequent edits to Bar generate compile error Required field is missing: label

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