Pointer values in non-error il_display output #340

(A posteriori issue to associate with pull request #304.)

il_display prints a pointer to an entity outside the file-scope memory
region with its raw address. One example is the name of a function's
parameter, in the param-type entry of the function's type:

name: **possible non-file-scope ptr** (0x7c74a620a0): "x"
The address changes from run to run.

The test output filter
(dev_tools/pylibs/edgtest/filter/init.py, _REGEX_REPLACEMENTS)
normalizes the other addresses (@…, @0x…, .text+0x…) but not this one.
So the recorded output of any test that displays such an IL never matches
twice.