src/vs/workbench/contrib/output/common/outputChannelModel.ts/BufferredOutputChannel/updateModel
class BufferredOutputChannel:	private updateModel(): void {
		if (this.model) {
			const { value, id } = this.bufferredContent.getDelta(this.lastReadId);
			this.lastReadId = id;
			const lastLine = this.model.getLineCount();
			const lastLineMaxColumn = this.model.getLineMaxColumn(lastLine);
			this.model.applyEdits([EditOperation.insert(new Position(lastLine, lastLineMaxColumn), value)]);
			this._onDidAppendedContent.fire();
		}
	}