[PATCH] Emit Fortran PARAMETERs as DW_TAG_constant into debuginfo

[Jason Merrill]

It seems like the code for handling RECORD_TYPE initializers will leave 
members with no explicit initializer as random bytes in the dwarf 
output.  Just setting the whole array to 0 before processing the 
initializer ought to do the trick.

With that change, the dwarf2 part is OK.

Jason