[Bug other/63159] New: Demangler crash

[cas43 at cs dot stanford.edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63159

            Bug ID: 63159
           Summary: Demangler crash
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: cas43 at cs dot stanford.edu

The demangler crashes when given this symbol:

_ZN7PhysBAM11HETERO_DIFFmlINS_6VECTORIfLi3EEENS0_10MAT_HOLDERINS_16SYMMETRIC_MATRIXIfLi3EEENS0_7VEC_ENDENS0_7MAT_ENDEEEEENS0_7HESSIANIT_DTclsrNS0_9MAT_MAP_1INS0_3MULINS0_3ARGILi0EEENSE_ILi1EEEEENS0_9VEC_MAP_1ISH_EEEE4TypecvT0__EcvNSB_6SCALARE_EEEEESM_RKNSA_ISB_SL_EE

See https://sourceware.org/bugzilla/show_bug.cgi?id=17043