Rename Red Knot (#17820)

crates/ty_python_semantic/resources/mdtest/binary/booleans.md

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+## Binary operations on booleans
+
+## Basic Arithmetic
+
+We try to be precise and all operations except for division will result in Literal type.
+
+```py
+a = True
+b = False
+
+reveal_type(a + a)  # revealed: Literal[2]
+reveal_type(a + b)  # revealed: Literal[1]
+reveal_type(b + a)  # revealed: Literal[1]
+reveal_type(b + b)  # revealed: Literal[0]
+
+reveal_type(a - a)  # revealed: Literal[0]
+reveal_type(a - b)  # revealed: Literal[1]
+reveal_type(b - a)  # revealed: Literal[-1]
+reveal_type(b - b)  # revealed: Literal[0]
+
+reveal_type(a * a)  # revealed: Literal[1]
+reveal_type(a * b)  # revealed: Literal[0]
+reveal_type(b * a)  # revealed: Literal[0]
+reveal_type(b * b)  # revealed: Literal[0]
+
+reveal_type(a % a)  # revealed: Literal[0]
+reveal_type(b % a)  # revealed: Literal[0]
+
+reveal_type(a // a)  # revealed: Literal[1]
+reveal_type(b // a)  # revealed: Literal[0]
+
+reveal_type(a**a)  # revealed: Literal[1]
+reveal_type(a**b)  # revealed: Literal[1]
+reveal_type(b**a)  # revealed: Literal[0]
+reveal_type(b**b)  # revealed: Literal[1]
+
+# Division
+reveal_type(a / a)  # revealed: float
+reveal_type(b / a)  # revealed: float
+b / b  # error: [division-by-zero] "Cannot divide object of type `Literal[False]` by zero"
+a / b  # error: [division-by-zero] "Cannot divide object of type `Literal[True]` by zero"
+
+# bitwise OR
+reveal_type(a | a)  # revealed: Literal[True]
+reveal_type(a | b)  # revealed: Literal[True]
+reveal_type(b | a)  # revealed: Literal[True]
+reveal_type(b | b)  # revealed: Literal[False]
+```
+
+## Arithmetic with a variable
+
+```py
+def _(a: bool):
+    def lhs_is_int(x: int):
+        reveal_type(x + a)  # revealed: int
+        reveal_type(x - a)  # revealed: int
+        reveal_type(x * a)  # revealed: int
+        reveal_type(x // a)  # revealed: int
+        reveal_type(x / a)  # revealed: int | float
+        reveal_type(x % a)  # revealed: int
+
+    def rhs_is_int(x: int):
+        reveal_type(a + x)  # revealed: int
+        reveal_type(a - x)  # revealed: int
+        reveal_type(a * x)  # revealed: int
+        reveal_type(a // x)  # revealed: int
+        reveal_type(a / x)  # revealed: int | float
+        reveal_type(a % x)  # revealed: int
+
+    def lhs_is_bool(x: bool):
+        reveal_type(x + a)  # revealed: int
+        reveal_type(x - a)  # revealed: int
+        reveal_type(x * a)  # revealed: int
+        reveal_type(x // a)  # revealed: int
+        reveal_type(x / a)  # revealed: int | float
+        reveal_type(x % a)  # revealed: int
+
+    def rhs_is_bool(x: bool):
+        reveal_type(a + x)  # revealed: int
+        reveal_type(a - x)  # revealed: int
+        reveal_type(a * x)  # revealed: int
+        reveal_type(a // x)  # revealed: int
+        reveal_type(a / x)  # revealed: int | float
+        reveal_type(a % x)  # revealed: int
+
+    def both_are_bool(x: bool, y: bool):
+        reveal_type(x + y)  # revealed: int
+        reveal_type(x - y)  # revealed: int
+        reveal_type(x * y)  # revealed: int
+        reveal_type(x // y)  # revealed: int
+        reveal_type(x / y)  # revealed: int | float
+        reveal_type(x % y)  # revealed: int
+```