src/vs/editor/contrib/suggest/browser/suggestInlineCompletions.ts/InlineCompletionResults/canBeReused
class InlineCompletionResults:	canBeReused(model: ITextModel, line: number, word: IWordAtPosition) {
		return this.model === model // same model
			&& this.line === line
			&& this.word.word.length > 0
			&& this.word.startColumn === word.startColumn && this.word.endColumn < word.endColumn // same word
			&& this.completionModel.incomplete.size === 0; // no incomplete results
	}