fix: missing imports

Author: BobTheBuidler

mypyc/irbuild/constant_fold.py

@@ -29,6 +29,10 @@
     UnaryExpr,
     Var,
 )
+from mypy.types import (
+    LiteralType,
+    TupleType,
+)
 from mypyc.irbuild.builder import IRBuilder
 from mypyc.irbuild.util import bytes_from_str