re PR fortran/19673 (pointer function with RESULT specified returns pointer to "ptr" rather than "*ptr")

fortran/
PR fortran/19673
* trans-expr.c (gfc_conv_function_call): Correctly dereference
argument from a pointer function also if it has a result clause.

testsuite/
PR fortran/19673
* gfortran.dg/func_result_1.f90: New test.

From-SVN: r95901