Don't attempt canonical for printing for now.
Color variable nodes red in d3 syntax tree.
Denote jump nodes with their nodetype in json and color them red. Decls are now green.
Color discard nodes yellow.
Remove link to manually constructed json from html output.
Fix an extra json-breaking trailing comma by adding an even scarier while loop buffer popping function.
Add correct json output for the function call visitor.
Add properly formed json output to return node type.
Fix json output for the multiple function case.
Fix function definition json output by eliding parameter list for now.
Color function call nodes a bright magenta.