Rename stdlib files to prevent naming conflict

trans/stdlib/sys.py → trans/stdlib/sys_.py

-stdout: CppType["auto&"]
-argv: list[str]
-
-def exit(code: int) -> None:
+stdout: CppType["auto&"]
+argv: list[str]
+
+def exit(code: int) -> None:
     ...
\ No newline at end of file

trans/transpiler/phases/typing/__init__.py

@@ -57,6 +57,8 @@ def discover_module(path: Path, scope):
         elif child.suffix == ".py":
             mod_scope = PRELUDE.child(ScopeKind.GLOBAL)
             StdlibVisitor(mod_scope).visit(ast.parse(child.read_text()))
+            if child.stem[-1] == "_":
+                child = child.with_name(child.stem[:-1])
             scope.vars[child.stem] = make_mod_decl(child, mod_scope)
             print(f"Visited {child}")