Make LSP always publish diagnostics #3397
Merged
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This change makes it so that the LSP publishes diagnostics on refresh regardless of whether there are any diagnostics to publish. This is necessary, because if there are currently N diagnostics displayed for the current file, we need to explicitly set them to zero on some clients, such as VSCode, when the user updates the file to be syntactically/semantically correct.
In other words, not doing this results in red squiggles that don't go away after fixing the issue.