Improve how we pick the "default" native symbol for the assembly view when double-clicking a call node with multiple native symbols#5788

mstange merged 3 commits intofirefox-devtools:mainfirefox-devtools/profiler:mainfrom

mstange:assembly-view-open-heaviestmstange/perf.html:assembly-view-open-heaviestCopy head branch name to clipboard