julia

98999547 - [JuliaSyntax] Return generator from `attrnames(::SyntaxTree)` (#61522)

[JuliaSyntax] Return generator from `attrnames(::SyntaxTree)` (#61522) Return a generator instead of a `Vector{Symbol}` from `attrnames` to avoid unnecessary allocation. `attrnames` is called from `hasproperty(::SyntaxTree, ::Symbol)` and similar hot-path queries, so avoiding the allocation would be worthwhile. This is compatible with the `propertynames` interface which accepts any iterable of properties, although `node_string` needed to be updated since the return value is now `Tuple{Vararg{Symbol}}` instead of a vector of the symbols. Also wrap inference tests in a `@testset` and add a test for `hasproperty` return type inference. Follows up JuliaLang/julia#61518.