add -fline-refs

ChangeLog

asn1c/asn1c.c

libasn1compiler/asn1c_C.c

libasn1compiler/asn1compiler.h

tests/03-enum-OK.asn1.-EF

tests/04-enum-SE.asn1.-E

tests/07-int-OK.asn1.-EF

tests/104-param-1-OK.asn1.-EFprint-class-matrix

tests/104-param-1-OK.asn1.-Pfwide-types

tests/105-param-2-OK.asn1.-Pfwide-types

tests/106-param-constr-OK.asn1.-P

tests/110-param-3-OK.asn1.-Pfwide-types

tests/112-param-class-OK.asn1.-EF

tests/117-real-constraint-OK.asn1.-EF

tests/118-per-constraint-OK.asn1.-EFprint-constraints

tests/119-per-strings-OK.asn1.-EF

tests/119-per-strings-OK.asn1.-Pgen-PER

tests/121-empty-imports-OK.asn1.-EF

tests/123-valueassignment-OK.asn1.-EF

tests/124-multiconstraint-OK.asn1.-EF