ext: Upgrade PyBind11 to version 2.1.1

Change-Id: I16870dec402d661295f9d013dc23e362b2b2c169
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/3225
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>

1 files changed, 4 insertions, 5 deletions

diff --git a/ext/pybind11/tests/test_issues.py b/ext/pybind11/tests/test_issues.py
index 2098ff8a3..e60b5ca90 100644
--- a/ext/pybind11/tests/test_issues.py
+++ b/ext/pybind11/tests/test_issues.py
@@ -1,5 +1,4 @@
 import pytest
-import gc
 from pybind11_tests import ConstructorStats
 
 
@@ -55,7 +54,7 @@ def test_shared_ptr_gc():
     el = ElementList()
     for i in range(10):
         el.add(ElementA(i))
-    gc.collect()
+    pytest.gc_collect()
     for i, v in enumerate(el.get()):
         assert i == v.value()
 
@@ -130,13 +129,13 @@ def test_nested():
     assert c.b.a.as_base().value == 42
 
     del c
-    gc.collect()
+    pytest.gc_collect()
     del a  # Should't delete while abase is still alive
-    gc.collect()
+    pytest.gc_collect()
 
     assert abase.value == 42
     del abase, b
-    gc.collect()
+    pytest.gc_collect()
 
 
 def test_move_fallback():