* arith.h: Update copyright years.
* dependency.h: Likewise.
* gfortran.h: Likewise.
* lang-specs.h: Likewise.
* parse.h: Likewise.
* symbol.c: Likewise.
* trans.h: Likewise.
* trans.c: Likewise.
* trans-array.c: Likewise.
* trans-common.c: Likewise.
* trans-const.h: Likewise.
* trans-const.c: Likewise.
* trans-decl.c: Likewise.
* trans-expr.c: Likewise.
* trans-io.c: Likewise.
* trans-openmp.c: Likewise.
* trans-types.h: Likewise.
* types.def: Likewise.

From-SVN: r123911