Ilogger\TraceWriter are not writing to Table Storage when the Dashboard is enabled.

#### Investigative information

Please provide the following:

- Timestamp:15th of January 2019 23:00 PM UTC
- Function App version (1.0 or 2.0):2.0
- Function App name: TestFinILogger
- Function name(s) (as appropriate): HttpTrigger1
- Invocation ID:2(Succeeded, Id=5a326f70-0f7f-42c4-aae5-60f28c57c36e)
- Region:Central US

#### Repro steps

Provide the steps required to reproduce the problem:

1. Create a new v2 Function App without Application Insights.
2. Add the AzureWebJobsDashboard app setting to enable the classic Monitor.
3. Add a HttpTrigger
4. Run it at least once.
5. if you're testing on the National Clouds you can use the Dashboard.
6. In the Public Cloud the Dashboard is not accessible so use the Kudu WebJobs dashboard.

#### Expected behavior

Provide a description of the expected behavior.

1. The Log Value should include the information from the context.log.

#### Actual behavior

Provide a description of the actual behavior observed.

1. The Log value is empty.


#### Known workarounds

Provide a description of any known workarounds.

No workarounds.

#### Related information

Provide any related information

* Programming language used - C#
* Links to source - Standard HttpTrigger template.
* Bindings used - Http Trigger