Function nested_is_static 

pub fn nested_is_static(pool: &DexPool, pc: &PoolClass) -> bool

Pool-level mirror of the DexCtx::nested_is_static render decision for passes that run without a ctx (method.rs). ACC_STATIC annotation evidence OR the structural signals — no outer-typed this$0 field, or no formal-0 outer ctor param (a this$0 field without the formal-0 param is a Kotlin lambda capture, not a JLS outer).