Good thought, but no.

P:\test>perl -MTime::HiRes=gettimeofday -le"print $INC{'Time/HiRes.pm'
+}"
c:/Perl/lib/Time/HiRes.pm

P:\test>perl -de1
perldb: Must not source insecure rcfile ./perldb.ini.
        You or the superuser must be the owner, and it must not
        be writable by anyone but its owner.

Loading DB routines from perl5db.pl version 1.25
Editor support available.

Enter h or `h h' for help, or `perldoc perldebug' for more help.

main::(-e:1):   1
  DB<1> use Time::HiRes qw[gettimeofday];

  DB<2> print $INC{'Time/HiRes.pm'}
c:/Perl/lib/Time/HiRes.pm
  DB<3>
[download]

I also tried to verify that the import was working properly, and it seems to be:

  DB<4> print \&GLOBAL::CORE::gettimeofday, $/, \&main::gettimeofday, 
+$/, \&Time::HiRes::gettimeofday
CODE(0x1b28118)
CODE(0x1a7e034)
CODE(0x1a7e034)
  DB<5> print __PACKAGE__
main
[download]