Process-arrow not showing after breakpoint

Issue Type: Bug
Tried to search the issuses both in VS-code and Powershell but could not find this problem.

After a breakpoint is hit, the "Process-arrow" in the taskarea is not shown when continuing the execution (F5).
Don't know if this is just in Powershell or if it is in VS Code itself.

A simple example:
Add Breakpoint at both Write-host
start debug (F5) and you see the "Process-arrow" in the orange taskarea
After the first breakpoint is hit, press F5 to continue
The "Process-arrow" do not show in the orange taskarea (see attached image)
For me that makes it hard to know if the code is still executing or if it is frozen/hung.

for ($i = 0; $i -lt 10000; $i++) {
write-host $i
if ($i -eq 3758) {
#add breakpoint here
Write-Host "Breakpoint Here"
}

if ($i -eq 6823) {
    #add breakpoint here
    Write-Host "Breakpoint Here"
}

}

Extension version: 1.9.0
VS Code version: Code 1.28.1 (3368db6750222d319c851f6d90eb619d886e08f5, 2018-10-11T18:13:53.910Z)
OS version: Windows_NT x64 10.0.17134

Reproduce the reported loop in VS Code with the PowerShell extension, using breakpoints at both Write-Host statements and continuing with F5. Start by tracing the debugger status and process-arrow update after continuing; done means the process arrow remains visible while execution continues, and the behavior is covered by a regression test if the existing test structure identifies a suitable location.