Add explicit triple to test_type.py.

Fixes on 32-bit hosts.

Author: efriedma-quic

clang/bindings/python/tests/cindex/test_type.py

@@ -546,7 +546,7 @@ class Template : public A, public B, virtual C {
         Template<int> instance;
         int bar;
         """
-        tu = get_tu(source, lang="cpp")
+        tu = get_tu(source, lang="cpp", flags=["--target=x86_64-linux-gnu"])
         cursor = get_cursor(tu, "instance")
         cursor_type = cursor.type
         cursor_type_decl = cursor_type.get_declaration()