Bugfix: [Linux,macOS] PlatformNotSupportedException on FSI on overflowing content at end of terminal

[T-Gro]

This fixes #14946

Verification attempt #1:
Debugging WSL in VS.
This works except for not starting a terminal. Output is shown in VS output pane, but input cannot be entered, or I have not figured out way how.

Verification attempt #2:

This did repro using regular dotnet fsi within WSL (Ubuntu) from the SDK from me.
I then use the same on a self-built dotnet fsi.dll from my local drive.
After the fix, it did not reproduce on WSL (Ubuntu) anymore.

Proof:

FsiNotFailingWslmp4.mp4

[athrun]

I can currently reproduce this bug on MacOS 14.0 with Apple Silicon using the latest dotnet 8 version available from Homebrew [1].

It looks like Homebrew is building dotnet 8 from the .NET VMR repo—do we know if this patch has made it there? It looks like the v8.0.0 tag on the VMR is dated Nov 2 while this patch is dated Nov 11.

[1] https://github.com/Homebrew/homebrew-core/blob/52f39075aa291380d1ab59d2da239afac57d0940/Formula/d/dotnet.rb

$ dotnet --info
.NET SDK:
 Version:           8.0.100
 Commit:            57efcf1350
 Workload version:  8.0.100-manifests.2d90560f

Runtime Environment:
 OS Name:     Mac OS X
 OS Version:  14.0
 OS Platform: Darwin
 RID:         osx-arm64
 Base Path:   /opt/homebrew/Cellar/dotnet/8.0.0/libexec/sdk/8.0.100/

.NET workloads installed:
 Workload version: 8.0.100-manifests.2d90560f
There are no installed workloads to display.

Host:
  Version:      8.0.0
  Architecture: arm64
  Commit:       5535e31a71

.NET SDKs installed:
  8.0.100 [/opt/homebrew/Cellar/dotnet/8.0.0/libexec/sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 8.0.0 [/opt/homebrew/Cellar/dotnet/8.0.0/libexec/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 8.0.0 [/opt/homebrew/Cellar/dotnet/8.0.0/libexec/shared/Microsoft.NETCore.App]

Other architectures found:
  None

Environment variables:
  DOTNET_ROOT       [/opt/homebrew/Cellar/dotnet/8.0.0/libexec]

global.json file:
  Not found

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

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