move testTernaryOperatorWithTypeVarDefault to python313.test

# Conflicts:
#	test-data/unit/check-python313.test

Author: randolf-scholz

test-data/unit/check-expressions.test

@@ -2492,21 +2492,3 @@ x + T  # E: Unsupported left operand type for + ("int")
 T()  # E: "TypeVar" not callable
 [builtins fixtures/tuple.pyi]
 [typing fixtures/typing-full.pyi]
-
-[case testTernaryOperatorWithDefault]
-# flags: --python-version 3.13
-# gh-18817
-
-class Ok[T, E = None]:
-    def __init__(self, value: T) -> None:
-        self._value = value
-
-class Err[E, T = None]:
-    def __init__(self, value: E) -> None:
-        self._value = value
-
-type Result[T, E] = Ok[T, E] | Err[E, T]
-
-class Bar[U]:
-    def foo(data: U, cond: bool) -> Result[U, str]:
-        return Ok(data) if cond else Err("Error")

test-data/unit/check-python313.test

@@ -319,3 +319,21 @@ class A[Y = X, X = int]: ...  # E: Name "X" is not defined
 
 class B[Y = X]: ...  # E: Name "X" is not defined
 [builtins fixtures/tuple.pyi]
+
+
+[case testTernaryOperatorWithTypeVarDefault]
+# https://github.com/python/mypy/issues/18817
+
+class Ok[T, E = None]:
+    def __init__(self, value: T) -> None:
+        self._value = value
+
+class Err[E, T = None]:
+    def __init__(self, value: E) -> None:
+        self._value = value
+
+type Result[T, E] = Ok[T, E] | Err[E, T]
+
+class Bar[U]:
+    def foo(data: U, cond: bool) -> Result[U, str]:
+        return Ok(data) if cond else Err("Error")