Constant KNOWN_CALL_NAMES 

pub(crate) const KNOWN_CALL_NAMES: &[&str];

HLSL function names that the rewrite pipeline treats specially. When a preset writes name (args) with whitespace between the identifier and (, downstream substring matches ("lerp(", paren-balanced walkers) would skip the call. Collapse that whitespace once up-front so every downstream pass sees the no-space form.