private BlockCompletion[] Completions { get; } = {
new BlockCompletion("Dim", "dim", BlockCompletionDef.DimStmtCompletionDef, "Dim statement", onlyValidInScope:false),
new BlockCompletion("Private", "priv", BlockCompletionDef.PrivateStmtCompletionDef, "Private declaration statement", onlyValidInScope:false, validInScope:false),
new BlockCompletion("Public", "pub", BlockCompletionDef.PublicStmtCompletionDef, "Public declaration statement", onlyValidInScope:false, validInScope:false),