bpo-40334: Make the PyPegen* and PyParser* APIs more consistent (GH-19839)

This commit makes both APIs more consistent by doing the following:
- Remove the `PyPegen_CodeObjectFrom*` functions, which weren't used 
  and will probably not be needed. Functions like `Py_CompileStringObject`
  can be used instead.
- Include a `const char *filename` parameter in `PyPegen_ASTFromString`.
- Rename `PyPegen_ASTFromFile` to `PyPegen_ASTFromFilename`, because
  its signature is not the same with `PyParser_ASTFromFile`.

1 files changed, 2 insertions, 2 deletions

diff --git a/Modules/_peg_parser.c b/Modules/_peg_parser.c
index 59b80f9e06..3b27b2c9cb 100644
--- a/Modules/_peg_parser.c
+++ b/Modules/_peg_parser.c
@@ -31,7 +31,7 @@ _Py_parse_file(PyObject *self, PyObject *args, PyObject *kwds)
     PyCompilerFlags flags = _PyCompilerFlags_INIT;
     PyObject *result = NULL;
 
-    mod_ty res = PyPegen_ASTFromFile(filename, mode, &flags, arena);
+    mod_ty res = PyPegen_ASTFromFilename(filename, mode, &flags, arena);
     if (res == NULL) {
         goto error;
     }
@@ -84,7 +84,7 @@ _Py_parse_string(PyObject *self, PyObject *args, PyObject *kwds)
         res = PyParser_ASTFromString(the_string, "<string>", mode, &flags, arena);
     }
     else {
-        res = PyPegen_ASTFromString(the_string, mode, &flags, arena);
+        res = PyPegen_ASTFromString(the_string, "<string>", mode, &flags, arena);
     }
     if (res == NULL) {
         goto error;