Make identifiers str (not str8) objects throughout.
This affects the parser, various object implementations,
and all places that put identifiers into C string literals.
In testing, a number of crashes occurred as code would
fail when the recursion limit was reached (such as the
Unicode interning dictionary having key/value pairs where
key is not value). To solve these, I added an overflowed
flag, which allows for 50 more recursions after the
limit was reached and the exception was raised, and
a recursion_critical flag, which indicates that recursion
absolutely must be allowed, i.e. that a certain call
must not cause a stack overflow exception.
There are still some places where both str and str8 are
accepted as identifiers; these should eventually be
removed.
diff --git a/Python/Python-ast.c b/Python/Python-ast.c
index 791b32d..18c2eb5 100644
--- a/Python/Python-ast.c
+++ b/Python/Python-ast.c
@@ -3280,3 +3280,5 @@
init_types();
return ast2obj_mod(t);
}
+
+