this.tokens.push(makeToken(TokenType.FlowSeqStart, this.pos, this.pos + 1));
this.pos++;
this.flowDepth--;
this.tokens.push(makeToken(TokenType.FlowSeqEnd, this.pos, this.pos + 1));
this.pos++;
this.tokens.push(makeToken(TokenType.Comma, this.pos, this.pos + 1));
this.pos++;