rewrote graph generator, not all working, but includes traits,enums,structs as well as functions/traitmethods/impls; uses the original ast much more than our copy (still uses that for resolving definitions); traversal is improved, should be able to get the propper module heirachy enclosing nodes
more on dotfile/graphviz generation
re-arranging - split find_ast_node.rs into visit_rust_ast.rs ... now we can see our mess in the callgraph we can fix it..
corrected for latest compiler
corrected for latest compiler