Bug 4 - Duplicate symbols (~43 entries, 195 extra): When a fn signature
was both deleted and added (modified), each line independently produced
a symbol. Added dedup to the fn-declaration path that upgrades existing
entries to Modified instead of adding duplicates.
Bug 5 - Trait name as type (~146 symbols): Truncated hunk headers like
`impl From<X>` (without `for ActualType`) caused the trait name to be
captured as the implementing type, producing wrong symbols like
`From::from`. Added is_std_trait() blocklist to return None for
well-known traits when `for` is absent, falling through to the safer
`<method>` placeholder.
Added 4 regression tests. All 51 tests pass.
https://claude.ai/code/session_01P1LKP6aqGt68rQAXrF6kSE
1. Fix `for` keyword leaking into symbol names (~14 entries): replaced
greedy regex `<.*>` with bracket-counting parser `parse_impl_type()`
that correctly handles nested generics like `impl<T> From<Py<T>> for PyObject`.
2. Fix `where` clause leaking into symbol names (~5 entries): the new
parser stops at top-level `where` keywords.
3. Filter test functions from symbol extraction (~39 entries): skip
`#[test]`/`#[cfg(test)]` attributed functions and `test_*` named
functions in diff output.
Added 9 regression tests. All 47 tests pass.
https://claude.ai/code/session_01P1LKP6aqGt68rQAXrF6kSE
