xkb: allow keysyms in interpret statements to be specified as integers

[mahkoh]

No description provided.

[Copilot]

Pull Request Overview

This PR extends the XKB configuration parser to allow keysyms in interpret statements to be specified as integer literals (e.g., 0x61) in addition to the existing identifier and string formats.

Key Changes:

• Added Integer(Interned, i64) variant to the InterpretSym enum
• Updated parser, resolver, and formatter to handle integer keysym specifications
• Added test case demonstrating interpret statements with hexadecimal integer keysyms

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
kbvm/src/xkb/kccgst/ast.rs	Adds Integer variant to InterpretSym enum to represent integer keysyms
kbvm/src/xkb/kccgst/parser.rs	Extends parser to recognize Token::Integer as valid interpret statement keysym
kbvm/src/xkb/kccgst/resolver.rs	Maps InterpretSym::Integer to Expr::Integer for keysym evaluation
kbvm/src/xkb/kccgst/formatter.rs	Implements formatting for integer keysyms by writing the interned representation
compile-tests/testcases/t04/t049/t0494/input.xkb	Test input demonstrating integer keysym syntax (0x61, 0x62) in interpret statements
compile-tests/testcases/t04/t049/t0494/expected.xkb	Expected output showing interpret statements are processed correctly with integer keysyms

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