Close #15387: inspect.getmodulename() now uses a new importlib.machinery.all_suffixes() API rather than the deprecated inspect.getmoduleinfo()
diff --git a/Lib/importlib/machinery.py b/Lib/importlib/machinery.py
index d5e7250..3fe0b11 100644
--- a/Lib/importlib/machinery.py
+++ b/Lib/importlib/machinery.py
@@ -13,3 +13,7 @@
 from ._bootstrap import ExtensionFileLoader
 
 EXTENSION_SUFFIXES = _imp.extension_suffixes()
+
+def all_suffixes():
+    """Returns a list of all recognized module suffixes for this process"""
+    return SOURCE_SUFFIXES + BYTECODE_SUFFIXES + EXTENSION_SUFFIXES