New Issue: --minimal-modules produces a SegFault in parser

17785, "leekillough", "--minimal-modules produces a SegFault in parser", "2021-05-19T20:27:13Z"

chpl --minimal-modules examples/hello.chpl 
internal error: seg fault [util/misc.cpp:916]

It seems to occur when string literal symbols are created. It is reproducible with:

var x = "a";