Deleting a sketch tab that declares a function used in other tabs doesn't report errors.

[silvanocerza]

Describe the bug

Deleting a sketch tab that declares a function used in other tabs doesn't report errors.

To Reproduce

1. Create a new sketch
2. Save it
3. Select any board
4. Create a new tab named tab.ino
5. In the tab.ino declare a function void foo() {}
6. Save tab.ino
7. Call foo() inside loop() in the main sketch file
8. From the file explorer delete tab.ino
9. Verify the foo() call inside loop() is not underlined as error
10. Type foo inside loop() and verify the foo() function is shown in the autocomplete windows

Expected behavior
I'd expect foo() to be underlined as error after tab.ino is deleted and not to be shown in the autocomplete window anymore.

Desktop (please complete the following information):

• OS: Linux
• Version: 2.0.0-beta.4-nightly.20210318
• Date: 2021-03-18T03:10:26.441Z
• CLI Version: 0.17.0 alpha [ab587583]

Additional context
None.

[ubidefeo]

Well spotted, @silvanocerza
This is very likely because the files it is analysing are still the temporarily built ones.
This means a rebuild is required at deletion of a file/tab

[per1234]

8. From the file explorer delete tab.ino

The bug also occurs when you use the primary UI to delete tab.ino (click the downward pointing triangle button on the right side of the tab bar, then "Delete").

[per1234]

Closing as fixed by arduino/arduino-language-server@3b7271a
Thanks Cristian!