investigate crashes in primer

[KotlinIsland]

setuptools (https://github.com/pypa/setuptools)
- version: 2.8.0+dev.0935784ab77e91c869bae67be01ba0f420678620
+ version: 2.8.0+dev.bbc0c3ec4ab4f8c2e740b3fa081ddf24d02adc23
-   File "/checker.py", line 3119, in visit_block
+   File "/checker.py", line 3121, in visit_block
-   File "/checker.py", line 3119, in visit_block
+   File "/checker.py", line 3121, in visit_block
-   File "/checker.py", line 3182, in visit_assignment_stmt
+   File "/checker.py", line 3184, in visit_assignment_stmt
-   File "/checker.py", line 3515, in check_assignment
+   File "/checker.py", line 3517, in check_assignment
- KeyError: <mypy.nodes.NameExpr object at 0x7f7221675e10>
+ KeyError: <mypy.nodes.NameExpr object at 0x7f5bbee1de10>

pydantic (https://github.com/pydantic/pydantic)
- version: 2.8.0+dev.0935784ab77e91c869bae67be01ba0f420678620
+ version: 2.8.0+dev.bbc0c3ec4ab4f8c2e740b3fa081ddf24d02adc23
-   File "/semanal.py", line 7297, in accept
+   File "/semanal.py", line 7301, in accept

core (https://github.com/home-assistant/core)
- version: 2.8.0+dev.0935784ab77e91c869bae67be01ba0f420678620
+ version: 2.8.0+dev.bbc0c3ec4ab4f8c2e740b3fa081ddf24d02adc23
-   File "/checker.py", line 5424, in visit_decorator
+   File "/checker.py", line 5426, in visit_decorator
-   File "/checker.py", line 5429, in visit_decorator_inner
+   File "/checker.py", line 5431, in visit_decorator_inner
-   File "/checker.py", line 3119, in visit_block
+   File "/checker.py", line 3121, in visit_block
-   File "/checker.py", line 3182, in visit_assignment_stmt
+   File "/checker.py", line 3184, in visit_assignment_stmt
-   File "/checker.py", line 3515, in check_assignment
+   File "/checker.py", line 3517, in check_assignment