Remove unnecessary isinstances (python#20670)

Fixes python#20665

Unfortunately, to properly solve this problem (have mypy point these
out) we need negation types, I think. See
python#20668.

Author: A5rocks

mypyc/analysis/ircheck.py

@@ -295,8 +295,6 @@ def visit_load_literal(self, op: LoadLiteral) -> None:
             expected_type = "builtins.str"
         elif isinstance(op.value, bytes):
             expected_type = "builtins.bytes"
-        elif isinstance(op.value, bool):
-            expected_type = "builtins.object"
         elif isinstance(op.value, float):
             expected_type = "builtins.float"
         elif isinstance(op.value, complex):

mypyc/test/test_serialization.py

@@ -55,10 +55,6 @@ def assert_blobs_same(x: Any, y: Any, trail: tuple[Any, ...]) -> None:
         for (xk, xv), (yk, yv) in zip(x.items(), y.items()):
             assert_blobs_same(xk, yk, trail + ("keys",))
             assert_blobs_same(xv, yv, trail + (xk,))
-    elif isinstance(x, dict):
-        assert x.keys() == y.keys(), f"Keys mismatch at {trail}"
-        for k in x.keys():
-            assert_blobs_same(x[k], y[k], trail + (k,))
     elif isinstance(x, Iterable) and not isinstance(x, (str, set)):
         # Special case iterables to generate better assert error messages.
         # We can't use this for sets since the ordering is unpredictable,