No bug. Separate hazard expectation files for shell and browser. r=woof!

DONTBUILD because NPOTB (yet)

--HG--
rename : js/src/devtools/rootAnalysis/expect.json => js/src/devtools/rootAnalysis/expect.shell.json
extra : rebase_source : 1914678fd9482abffff66b110f78be6c4fd6bad3