pythonREPLSmartSend does not fully close a code block with a dict or set at the end

[GriceTurrble]

Type: Bug

1. Opt into the Python experiment pythonREPLSmartSend.

2. Define a small class with one method that returns a dict:

   class Something:
       def method():
           return {"something": "abc"}

3. Place the cursor at the end of the first line, class Something:

4. Press Shift-Enter

The result sent to the REPL is the full definition, but it is missing the last trailing newline:

>>> class Something:
...     def method():
...         return {"something": "abc"}
... # cursor is here!

This means chaining the next line of code can result in an indentation error, because the REPL has not fully closed this multiline entry:

>>> class Something:
...     def method():
...         return {"something": "abc"}
... a = {"something_else": "abc"}
  File "<stdin>", line 4
    a = {"something_else": "abc"}
    ^
SyntaxError: invalid syntax
>>> 

Notably, I've reproduced this when the return statement returns a dict. The issue is not reproduced in the case of return "abc" or return 123.

Multiline dicts also cause the issue:

>>> class Something:
...     def method():
...         return {
...             "abc": "def",
...             "cdf": "what",
...         }
... # cursor is here

Parentheses used for multiine strings do not:

>>> class Something:
...     def method():
...         return (
...             "abc"
...             "cdf"
...         )
... 
>>> # cursor is here

VS Code version: Code 1.84.0 (Universal) (d037ac076cee195194f93ce6fe2bdfe2969cc82d, 2023-11-01T11:30:19.406Z)
OS version: Darwin arm64 22.1.0
Modes:

System Info

Item	Value
CPUs	Apple M1 Pro (10 x 24)
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)	9, 8, 7
Memory (System)	16.00GB (0.12GB free)
Process Argv
Screen Reader	no
VM	0%

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Extension	Author (truncated)	Version
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isort	ms-	2023.10.1
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tilt	Tch	1.0.9
tiltfile	til	0.0.3
markdown-all-in-one	yzh	3.5.1

(5 theme extensions excluded)

[GriceTurrble]

Update, this is a little more universal to code blocks with some object ending with }:

>>> def method():
...     return {
...         "abc": "def",
...         "cdf": "what",
...     }
... # cursor

>>> if True:
...     a = {
...         "abc": "def",
...         "cdf": "what",
...     }
... # cursor

>>> if True:
...     a = {"abc": "def"}
... # cursor

Also works with a set:

>>> if True:
...     a = {"abc"}
... # cursor