[bug bash] The Core Tools hang if an error is encountered when indexing PowerShell functions

[Francisco-Gamino]

The hang is probably being caused by the Functions Host, but I am adding an issue here for tracking.

TODO: Need to check with the Python and NodeJs teams to see if the same happens in their new programming models.

Repro steps:
Define a PowerShell function with a syntax issue in it, and start the Core Tools

This is my function definition in my functions.psm1 file:

function GenericHttpTriggerImplementation()
{
    [Function()]
    [OutputBinding(Type='http', Name='Response')]
    param(
        [InputBinding(Type='httpTrigger')]
        [AdditionalInformation()] # This is the line with the issue where the binding name is missing
        [AdditionalInformation(BindingName='Request', Name='authLevel', Value='anonymous')]
        [AdditionalInformation(BindingName='Request', Name='methods', Value=('GET', 'POST'))]
        [AdditionalInformation(BindingName='Request', Name='route', Value='')]
        $Request,
        $TriggerMetadata
    )
}

The Core Tools hang even after pressing Ctrl + C

Core Tools output:

PS C:\MyFunctionApps\PSNPMBugBash> func start

Azure Functions Core Tools
Core Tools Version:       4.0.5210 Commit hash: N/A  (64-bit)
Function Runtime Version: 4.21.1.20667

[2023-06-08T22:01:36.567Z] Language Worker Process exited. Pid=13800.
[2023-06-08T22:01:36.568Z] C:\Program Files\dotnet\dotnet.exe exited with code -532462766 (0xE0434352). Unhandled exception. System.Exception: Errors reported while executing Get-FunctionsMetadata cmldet. System.Management.Automation.CmdletInvocationException: The following problems exist with AdditionalInformation: \n The BindingName is missing,   at Microsoft.Azure.Functions.PowerShell.SDK.WorkerIndexingHelper.IndexFunctions(DirectoryInfo baseDir, List`1& errors).
[2023-06-08T22:02:30.191Z] Requesting metadata from worker failed.
[2023-06-08T22:02:30.197Z] Microsoft.Azure.WebJobs.Script.Grpc: The operation has timed out.