v0.9.57

• Fix: an incremental rebuild no longer wipes cross-file project AST nodes — re-extracting one .csproj/.sln was dropping package/framework nodes of a referenced project (whose stub carried the referenced file's source_file); the AST-replacement set is now derived from the files actually extracted (#3411, thanks @hopstreax).
• Fix: when duplicate nodes merge, the richer (more complete) node is now kept as the survivor and the losers' non-empty fields are folded in, instead of a shorter-id passing mention winning and dropping content (#3372, thanks @abhay-codes07).
• Fix: a C# generic call site with explicit type arguments — Get<int>(...), unqualified or through this — now resolves to the method definition instead of capturing Get<int> as the callee and failing to match (#3406, thanks @abhay-codes07).
• Fix: this.X = function / this.X = () => … members are now captured in every enclosing-function form (function expressions, arrows, IIFEs, callbacks), not just function declarations (#3408, thanks @abhay-codes07).