Add SOABI_PLATFORM to test.pythoninfo

Add ALT_SOABI and SOABI_PLATFORM to test.pythoninfo. Add also
EXTENSION_SUFFIXES of importlib.machinery.

Author: vstinner

Lib/test/pythoninfo.py

@@ -570,6 +570,7 @@ def collect_sysconfig(info_add):
 
     for name in (
         'ABIFLAGS',
+        'ALT_SOABI',
         'ANDROID_API_LEVEL',
         'CC',
         'CCSHARED',
@@ -595,6 +596,7 @@ def collect_sysconfig(info_add):
         'Py_REMOTE_DEBUG',
         'SHELL',
         'SOABI',
+        'SOABI_PLATFORM',
         'TEST_MODULES',
         'VAPTH',
         'abs_builddir',
@@ -1316,6 +1318,12 @@ def collect_system(info_add):
             info_add('system.hardware', hardware)
 
 
+def collect_importlib(info_add):
+    import importlib.machinery
+    info_add('importlib.extension_suffixes',
+             importlib.machinery.EXTENSION_SUFFIXES)
+
+
 def collect_info(info):
     error = False
     info_add = info.add
@@ -1358,6 +1366,7 @@ def collect_info(info):
         collect_zstd,
         collect_libregrtest_utils,
         collect_system,
+        collect_importlib,
 
         # Collecting from tests should be last as they have side effects.
         collect_test_socket,