[llvm] [llvm-objcopy] Add --gap-fill and --pad-to options (PR #65815)

[James Henderson via llvm-commits]

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@@ -2651,7 +2651,7 @@ Error BinaryWriter::write() {
 
   assert(LoadableSections.front()->Offset == 0);
 
-  for (unsigned i = 0; i != LoadableSections.size(); ++i) {
+  for (std::size_t i = 0; i != LoadableSections.size(); ++i) {
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jh7370 wrote:

Nit: `size_t` seems to be the norm rather than `std::size_t` (in my current checkout, there are less than 500 lines referencing `std::size_t` versus over 12500 referencing `size_t` (so presumably ~12000 that actually use `size_t` and not `std::size_t`).

https://github.com/llvm/llvm-project/pull/65815