debug/pe: use correct pe64 test in ImportedSymbols
64-bit PE is set by the optional header magic number,
not by the machine field.
Fixes #54250
Change-Id: I4d01bc08553780d5470e63f0b17bbd968323e5d1
Reviewed-on: https://go-review.googlesource.com/c/go/+/421394 Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>