properly reject failed language service calls #760
Merged
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If a language service call fails, it can leave the VS Code UI forever in a
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state. An example of this is trying to invoke hover text for F# code. The command expectedly fails due to aNoSuitableKernelFoundException
(because F# currently doesn't provide hover text), but that failure is never propagated to the UI.The fix is to actually call
reject()
if the call failed.This addresses the real underlying problem mentioned in #736, and #714 will add hover text for F#.
Without this change, the failure would bubble all the way to the top of the JS engine and manifest itself in the console.
The real change is the addition of the
ensureErrorsAreRejected()
function; the rest is just copy/paste.