Use Treeherder codes in the test list

[klahnakoski]

ato says,

I think it is very useful to make a data connection between which code lines are run by which test jobs. However, I haven’t memorised the full names of all the test jobs. It would be useful to use the shorthand test job names in the right-hand side list, like they are represented on Treeherder.

[klahnakoski]

Here is an example of how to get this information out of ActiveData.

https://activedata.allizom.org/tools/query.html#query_id=Ax2Rwjlm

{
	"from":"coverage",
	"select":[
		{"name":"group","value":"treeherder.groupSymbol"},
		{"name":"name","value":"treeherder.groupName"}
	]
}