[compiler-rt] list_union() is actually an intersect operation. Rename it.
Summary:
Given:
set(T1 a b c) set(T2 b c d) message("T1=${T1}") message("T2=${T2}") list_union(T3 T1 T2) message("T3=${T3}")
cmake emitted:
T1=a;b;c T2=b;c;d T3=b;c
Reviewers: beanz
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D16580