bpo-36142: Add _PyPreConfig.allocator (GH-12181)

* Move 'allocator' and 'dev_mode' fields from _PyCoreConfig
  to _PyPreConfig.
* Fix InitConfigTests of test_embed: dev_mode sets allocator to
  "debug", add a new tests for env vars with dev mode enabled.

1 files changed, 3 insertions, 3 deletions

diff --git a/Include/cpython/coreconfig.h b/Include/cpython/coreconfig.h
index 306577c..2673576 100644
--- a/Include/cpython/coreconfig.h
+++ b/Include/cpython/coreconfig.h
@@ -80,6 +80,9 @@ typedef struct {
        Set by -X utf8 command line option and PYTHONUTF8 environment variable.
        If set to -1 (default), inherit Py_UTF8Mode value. */
     int utf8_mode;
+
+    int dev_mode;           /* Development mode. PYTHONDEVMODE, -X dev */
+    char *allocator;        /* Memory allocator: PYTHONMALLOC */
 } _PyPreConfig;
 
 #ifdef MS_WINDOWS
@@ -109,9 +112,6 @@ typedef struct {
     int use_hash_seed;      /* PYTHONHASHSEED=x */
     unsigned long hash_seed;
 
-    const char *allocator;  /* Memory allocator: PYTHONMALLOC */
-    int dev_mode;           /* PYTHONDEVMODE, -X dev */
-
     /* Enable faulthandler?
        Set to 1 by -X faulthandler and PYTHONFAULTHANDLER. -1 means unset. */
     int faulthandler;