LSP tests are sensitive to changes of global symbols

[bartlomieju]

As seen in eg. #22054 adding new global symbols requires us to update tests for the LSP.

It feels strange that touching an unrelated part of the codebase requires updates to a test that says lsp_jsr_autom_import_completion_import_map(). These two are completely unrelated. We should tweak the test to not require these changes if new global symbols are added (or removed).