Switch the "comdatDefinitions" map to lazy allocation; we only need it
for loading PE objects, no point doing an allocation during package
init if we don't need it.
Change-Id: Ie33f2c56e964f35ac2e137840ac021cfaaa897c6
Reviewed-on: https://go-review.googlesource.com/c/go/+/540255 Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Quim Muntal <quimmuntal@gmail.com>