They are now printed as HeapSymRegion{$x} in order to discriminate between that
and regular SymRegion{$x}, which are two different regions, having different
parent reginos (memory spaces) - HeapSpaceRegion and UnknownSpaceRegion
respectively.

Differential Revision: https://reviews.llvm.org/D40793


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@319793 91177308-0d34-0410-b5e6-96231b3b80d8