numerous refactoring

- Split parser core and compiler core. Fix #14
- AST int type to `u32`
- Updated asdl_rs.py and update_asdl.sh fix #6
- Use `ruff_python_ast::SourceLocation` for Python source location. Deleted our own Location.
- Renamed ast::Located to ast::Attributed to distinguish terms for TextSize and SourceLocation
- `ast::<Node>`s for TextSize located ast. `ast::located::<Node>` for Python source located ast.
- And also strictly renaming `located` to refer only python location related interfaces.
- `SourceLocator` to convert locations.
- New `source-code` features of to disable python locations when unnecessary.
- Also including fully merging https://github.com/astral-sh/RustPython/pull/4 closes #9

parser/src/string.rs

@@ -4,13 +4,16 @@
 // regular strings. Since the parser has no definition of f-string formats (Pending PEP 701)
 // we have to do the parsing here, manually.
 use crate::{
-    ast::{self, Constant, ConversionFlag, Expr, ExprKind},
+    ast::{self, Constant, Expr, ExprKind},
     lexer::{LexicalError, LexicalErrorType},
     parser::{parse_expression_located, LalrpopError, ParseError, ParseErrorType},
     token::{StringKind, Tok},
 };
 use itertools::Itertools;
-use rustpython_compiler_core::text_size::{TextLen, TextSize};
+use rustpython_parser_core::{
+    text_size::{TextLen, TextSize},
+    ConversionFlag,
+};
 
 // unicode_name2 does not expose `MAX_NAME_LENGTH`, so we replicate that constant here, fix #3798
 const MAX_UNICODE_NAME: usize = 88;