fix(golike): register generic functions with [...] type params

[StressTestor]

what

generic functions/methods with a square-bracket type-param list were dropped or mis-parsed (no name, wrong param count). this registers them correctly.

def identity[T](x: T): T = { x }   // before: not counted at all

func Map[T any](x T) T { return x }   // same

why

in golike.py, after a function name _expect_function_dec only handled ( (value params) and < (the <> generics). a [ - Scala def f[T](...) or Go 1.18 func F[T any](...) - fell through to the else and bailed back to _state_global, so the function was never registered. this affects every golike-based reader: go, scala, kotlin, rust, swift, zig, solidity.

fix

one branch in _expect_function_dec that skips the [...] list via _generalize_type_params, mirroring the existing <> _generalize. once the type params are skipped, the following ( params register the function as normal.

tests

• testScala.py: generic method with one type param, with multiple type params, and a generic method inside a class body (the drop-in-context case)
• testGo.py: [T any] and multiple type params [T any, U any]

known limitation

this covers the common def f[T](...) / func F[T any](...) shape. paren-less generic defs like Scala def empty[T]: List[T] are still dropped, same as the existing paren-less-def limitation - out of scope here, since closing it means changing how paren-less defs register in general.