Repository: flutter
Issue: VerticalDivider is unusable out of the box
Labels: framework,f: material design,a: quality,has reproducible steps,found in release: 3.3,found in release: 3.7,team-design,triaged-design

## Steps to Reproduce

<!-- You must include full steps to reproduce so that we can reproduce the problem. -->

1. Run `flutter create bug`.
2. Update the files as follows: main.dart
```
import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          children: <Widget>[
            Row(
              children: <Widget>[
                Text('qwe'),
                VerticalDivider(),
                Text('qwe'),
              ],
            ),
            IntrinsicHeight(
              child: Row(
                children: <Widget>[
                  Text('qwe'),
                  VerticalDivider(),
                  Text('qwe'),
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }
}
```
3. ... <!-- describe how to reproduce the problem -->

**Expected results:** Divider shown in all rows

**Actual results:** First row divider not shown

<details>

```
D:\dev\pavement>flutter doctor -v
[√] Flutter (Channel unknown, v1.12.13+hotfix.7, on Microsoft Windows [Version 10.0.17134.1304], locale en-GB)
    • Flutter version 1.12.13+hotfix.7 at C:\tools\flutter
    • Framework revision 9f5ff2306b (2 months ago), 2020-01-26 22:38:26 -0800
    • Engine revision a67792536c
    • Dart version 2.7.0

[√] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
    • Android SDK at c:\tools\Android-SDK
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-29, build-tools 29.0.3
    • ANDROID_HOME = c:\tools\Android-SDK
    • Java binary at: C:\tools\android-studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)
    • All Android licenses accepted.

[√] Android Studio (version 3.6)
    • Android Studio at C:\tools\android-studio
    • Flutter plugin version 45.0.1
    • Dart plugin version 192.7761
    • Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)

[!] VS Code, 32-bit edition (version 1.43.2)
    • VS Code at C:\Program Files (x86)\Microsoft VS Code
    X Flutter extension not installed; install from
      https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[√] Connected device (1 available)
    • LG H873 • LGH8736bb28167 • android-arm64 • Android 8.0.0 (API 26)

! Doctor found issues in 1 category.
```

</details>