Code folding is confused by hash table definitions

[ThubLives]

Issue Description

When a hash table is defined inside a function (whether a single- or multi-line definition), folding the function causes the fold to stop at the end of the hash table block rather than the end of the function block.

Reproducing the Issue

1. Open the code below as a PowerShell script.
2. Make sure configuration option "powershell.codeFolding.showLastLine" is set to true.
3. Move the cursor to the function statement on line 3 and press <Ctrl>+<Shift>+[ (on Windows) to fold the whole function.
   Note that the fold ends at line 23 rather than line 28 as expected.
4. Unfold the function line (<Ctrl>+<Shift>+] on Windows)
5. Move the cursor to the hash table definition on line 18 and fold the multi-line definition.
   Note that the fold swallows the closing line 23 as well as the blank line 24 below it.

Code:

#region Region1
Write-Host "Hello."
function TestFunction {
  param (
    [Parameter(Mandatory = $true,
      Position = 0)]
    [string]$Param1
  )
  Write-Host "Testing..."

  $NewArray = @(
    ArrayValue1
    ArrayValue2
    ArrayValue3
    ArrayValue4
  )

  $NewHashTable = @{
    HashTableValue1 = 1
    HashTableValue2 = 2
    HashTableValue3 = 3
    HashTableValue4 = 4
  }

  if ($true) {
    Write-Host "True is $true"
  }
}
#endregion

Bonus Issue Test

1. Put only the hash table definition in its own file (see code below).
   Note that nothing is marked as foldable and the keyboard or palette commands do nothing.

Code:

$NewHashTable = @{
  HashTableValue1 = 1
  HashTableValue2 = 2
  HashTableValue3 = 3
  HashTableValue4 = 4
}

Environment Information

Visual Studio Code

Name	Version
Operating System	Windows_NT x64 10.0.17134
VSCode	1.29.1
PowerShell Extension Version	1.10.0

PowerShell Information

Name	Value
PSVersion	5.1.17134.407
PSEdition	Desktop
PSCompatibleVersions	1.0 2.0 3.0 4.0 5.0 5.1.17134.407
BuildVersion	10.0.17134.407
CLRVersion	4.0.30319.42000
WSManStackVersion	3.0
PSRemotingProtocolVersion	2.3
SerializationVersion	1.1.0.1

Visual Studio Code Extensions

Visual Studio Code Extensions(Click to Expand)

Extension	Author	Version
PowerShell	ms-vscode	1.10.0

[rjmholt]

Thanks for opening an issue @ThubLives. This is being worked on in PowerShell/PowerShellEditorServices#805

[SydneyhSmith]

Closing as a duplicate of #1631