[PATCH] readelf, libdw: blocks aren't expressions for DWARF version 4

[Mark Wielaard]

On Fri, 2021-02-12 at 16:30 +0100, Mark Wielaard wrote:
> For DWARF version 4 or higher a block form really encodes a block,
> not an expression location. Also constant offsets can be expressed
> as DW_FORM_implicit_const in DWARF version 5.

Pushed.