Consider overlap between instances and callables

[ilevkivskyi]

Fixes #8869

The fix seems straightforward.

[github-actions]

Diff from mypy_primer, showing the effect of this PR on open source code:

psycopg (https://github.com/psycopg/psycopg)
+ tests/test_cursor_server.py:27: error: Unused "type: ignore" comment  [unused-ignore]
+ tests/test_cursor_server_async.py:28: error: Unused "type: ignore" comment  [unused-ignore]

steam.py (https://github.com/Gobot1234/steam.py)
+ steam/ext/commands/commands.py:553: error: Too many arguments for "object"  [call-arg]

antidote (https://github.com/Finistere/antidote)
- src/antidote/lib/lazy_ext/_lazy.py:171: error: Non-overlapping identity check (left operand type: "Literal[FunctionKind.VALUE]", right operand type: "Literal[FunctionKind.METHOD]")  [comparison-overlap]
- src/antidote/lib/lazy_ext/_lazy.py:174: error: Unused "type: ignore" comment  [unused-ignore]
- src/antidote/lib/lazy_ext/_lazy.py:178: error: Non-overlapping identity check (left operand type: "Literal[FunctionKind.VALUE]", right operand type: "Literal[FunctionKind.PROPERTY]")  [comparison-overlap]
- src/antidote/lib/lazy_ext/_lazy.py:181: error: Unused "type: ignore" comment  [unused-ignore]
- src/antidote/lib/lazy_ext/_lazy.py:185: error: Non-overlapping identity check (left operand type: "Literal[FunctionKind.VALUE]", right operand type: "Literal[FunctionKind.FUNCTION]")  [comparison-overlap]
+ src/antidote/lib/interface_ext/__init__.py:1289: error: Overloaded function signatures 1 and 5 overlap with incompatible return types  [overload-overlap]
+ src/antidote/lib/interface_ext/__init__.py:1321: error: Overloaded function signatures 1 and 5 overlap with incompatible return types  [overload-overlap]
- tests/lib/interface/test_function.py:83: error: Unused "type: ignore" comment  [unused-ignore]
- tests/lib/interface/test_function.py:86: error: Unused "type: ignore" comment  [unused-ignore]
- tests/lib/interface/test_function.py:89: error: Unused "type: ignore" comment  [unused-ignore]
- tests/lib/interface/test_function.py:154: error: Unused "type: ignore" comment  [unused-ignore]
- tests/lib/interface/test_function.py:191: error: Unused "type: ignore" comment  [unused-ignore]
- tests/lib/interface/test_function.py:194: error: Unused "type: ignore" comment  [unused-ignore]

tornado (https://github.com/tornadoweb/tornado)
+ tornado/test/ioloop_test.py:55: error: Unused "type: ignore" comment  [unused-ignore]
+ tornado/test/ioloop_test.py:56: error: Unused "type: ignore" comment  [unused-ignore]

operator (https://github.com/canonical/operator)
- ops/framework.py:799: error: Unused "type: ignore" comment  [unused-ignore]
- ops/framework.py:818: error: Unused "type: ignore" comment  [unused-ignore]

spark (https://github.com/apache/spark)
- python/pyspark/sql/worker/write_into_data_source.py:157: error: Unused "type: ignore" comment  [unused-ignore]
- python/pyspark/sql/worker/write_into_data_source.py:164: error: Unused "type: ignore" comment  [unused-ignore]
- python/pyspark/sql/worker/create_data_source.py:131: error: Unused "type: ignore" comment  [unused-ignore]
- python/pyspark/sql/worker/create_data_source.py:156: error: Unused "type: ignore" comment  [unused-ignore]
- python/pyspark/sql/worker/create_data_source.py:166: error: Unused "type: ignore" comment  [unused-ignore]
- python/pyspark/sql/worker/create_data_source.py:168: error: Unused "type: ignore" comment  [unused-ignore]

[ilevkivskyi]

Most things in the mypy_primer are correct. The overload issues is annoying, I am actually going to re-design the whole overload overlap thing, PR incoming.