comments
resolve a todo t/run/325: default params with template classes caused crash
upgrade the verion of source-map-support
fix a crash on --mode parse
amend 66d7921002a806336ab115187992b2c0c6462a32

TODO: remove local function statements correctly

problem reproduced by:
JSX_OPTS=--release make compiler && jsx --release --disable-optimize
no-log t/run/311.unused-local-func.jsx
releng for v0.9.58