Make macro expansion backtraces shorter#28351

Merged

bors merged 4 commits intorust-lang:masterfrom

jonas-schievink:macro-bt

Sep 15, 2015

Commits on Sep 10, 2015

Commits on Sep 11, 2015

Don't print duplicate macro backtrace frames
jonas-schievink
committed

Commits on Sep 14, 2015

Print the file in which a macro was defined
jonas-schievink
committed