partial garbled code when running test

Type: Bug

## Issue Description ##
## Steps to Reproduce ##
Running the test with "run Test"
## Expected Behavior ##
no garbled code
## Actual Behavior ##
garbled code when output MSBuild info
works well for the test running

## Logs ##

### C# log ###
Post the output from Output-->C# here

### C# LSP Trace Logs ###
Post the output from Output-->C# LSP Trace Logs here. Requires `dotnet.server.trace` to be set to `Trace`

## Environment information ##

**VSCode version**: 1.85.1
**C# Extension**: 2.14.8
**Using OmniSharp**: false

Dotnet Information
.NET SDK:
Version: 8.0.100
Commit: 57efcf1350
Workload version: 8.0.100-manifests.71b9f198

Runtime Environment:
OS Name: Windows
OS Version: 10.0.22621
OS Platform: Windows
RID: win-x64
Base Path: C:\Program Files\dotnet\sdk\8.0.100\

.NET workloads installed:
Workload version: 8.0.100-manifests.71b9f198
[wasm-tools]
Installation Source: SDK 8.0.100
Manifest Version: 8.0.0/8.0.100
Manifest Path: C:\Program Files\dotnet\sdk-manifests\8.0.100\microsoft.net.workload.mono.toolchain.current\8.0.0\WorkloadManifest.json
Install Type: Msi

Host:
Version: 8.0.0
Architecture: x64
Commit: 5535e31a71

.NET SDKs installed:
8.0.100 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 8.0.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 8.0.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 8.0.0 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Other architectures found:
None

Environment variables:
Not set

global.json file:
Not found

Learn more:
https://aka.ms/dotnet/info

Download .NET:
https://aka.ms/dotnet/download

Visual Studio Code Extensions

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|codespaces|GitHub|1.16.5|github.codespaces-1.16.5|
|copilot|GitHub|1.143.0|github.copilot-1.143.0|
|copilot-chat|GitHub|0.11.1|github.copilot-chat-0.11.1|
|cpptools|ms-vscode|1.18.5|ms-vscode.cpptools-1.18.5-win32-x64|
|csharp|ms-dotnettools|2.14.8|ms-dotnettools.csharp-2.14.8-win32-x64|
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|python|ms-python|2023.22.1|ms-python.python-2023.22.1|
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|remote-ssh|ms-vscode-remote|0.107.1|ms-vscode-remote.remote-ssh-0.107.1|
|remote-ssh-edit|ms-vscode-remote|0.86.0|ms-vscode-remote.remote-ssh-edit-0.86.0|
|rust-analyzer|rust-lang|0.3.1791|rust-lang.rust-analyzer-0.3.1791-win32-x64|
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Extension version: 2.14.8
VS Code version: Code 1.85.1 (0ee08df0cf4527e40edc9aa28f4b5bd38bbff2b2, 2023-12-13T09:49:37.021Z)
OS version: Windows_NT x64 10.0.22621
Modes:

System Info

|Item|Value|
|---|---|
|CPUs|AMD Ryzen 7 4800U with Radeon Graphics (16 x 1797)|
|GPU Status|2d_canvas: enabled
canvas_oop_rasterization: enabled_on
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: enabled
multiple_raster_threads: enabled_on
opengl: enabled_on
rasterization: enabled
raw_draw: disabled_off_ok
video_decode: enabled
video_encode: enabled
vulkan: disabled_off
webgl: enabled
webgl2: enabled
webgpu: enabled|
|Load (avg)|undefined|
|Memory (System)|15.37GB (2.68GB free)|
|Process Argv|--crash-reporter-id ca083ca7-22c6-4e5f-9121-7c321a87ed22|
|Screen Reader|no|
|VM|0%|