TPI: Fix Decoration Issue for Python REPL Terminal: Run Recent Command

[anthonykim1]

Refs: #22811

• macOS Robo (@deepak1556)
• linux Andrea Mah (@andreamah)

Complexity: 3

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Thank you in advance for testing this TPI.

Background Information

With allowing VS Code's Terminal: Run Recent Command for Python REPL users using MacOS and Linux, there was an issue where success/failure decoration for commands ran after the Terminal: Run Recent Command were inappropriately cached.
For example, running a Terminal: Run Recent Command that generated fail/red decoration and then trying to run successful command after that would have the decoration cached to the red failure state, instead of the correct/blue decoration.

Setup:

1. Make sure you have Python installed in your computer.
2. Make sure you did not turn off shell integration.

Steps:

1. Open Python file. (aka. .py file)
2. Write some Python code. (Ignore this step if you already have Python code in your previously set up Python file)
3. Shift+enter on line with Python code and observe the code you just executed has been sent to Python REPL properly.
4. Shift+enter on multiple times and send command to REPL, so we have much history to use for Terminal: Run Recent Command. Make effort to mix in code that would generate failure, thus red decoration for shell integration, and code that would generate success, thus blue decoration for shell integration.
5. Run Terminal: Run Recent Command and select the line that lead to failure. Observe that code gets sent to REPL with red decoration.
6. Try running successful Python command, and see if you get the correct/blue decoration.
7. Try mixing successful, invalid code with Terminal:Run Recent Command to see whether you get appropriate decoration everytime.

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[andreamah]

Great work! 👍