Refactor expr_pass

[r41k0u]

No description provided.

[r41k0u]

This takes care of the beautification stuff, now I can work on missing grammar

[r41k0u]

This is mostly fixed, the next things I will do are outside the scope of this PR.

[Copilot]

Pull Request Overview

Refactors expression and binary operation handling by modularizing logic, simplifying function signatures, and expanding operand support; adjusts tests accordingly and changes default compile logging verbosity.

• Extracted expression evaluation into helper functions and simplified binary op handling to return computed values.
• Updated tests to use tracepoint section names and expanded a binary operation chain.
• Changed default logging level for compile() from WARNING to INFO.

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/passing_tests/binops1.py	Modified test: changed section decorator, added print, and altered return value.
tests/passing_tests/binops.py	Modified test to use longer chained binary expression.
pythonbpf/functions_pass.py	Updated call to handle_binary_op to match new, reduced parameter list.
pythonbpf/expr_pass.py	Refactored eval_expr into smaller helpers for names, constants, attributes, and deref calls.
pythonbpf/codegen.py	Changed default log level of compile() to INFO (behavioral/API change).
pythonbpf/binary_ops.py	Refactored binary op handling: added operand resolver, recursive support, and operation mapping.

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