Process --repro early

If mold crashes before --repro is processed, no .repro.tar file is
created. So we want to process the option as early as possible.

Author: rui314

src/main.cc

@@ -332,6 +332,10 @@ int mold_main(int argc, char **argv) {
     });
   }
 
+  // Handle -repro
+  if (ctx.arg.repro)
+    write_repro_file(ctx);
+
   Timer t_before_copy(ctx, "before_copy");
 
   // Apply -exclude-libs
@@ -454,10 +458,6 @@ int mold_main(int argc, char **argv) {
   if (ctx.arg.print_dependencies)
     print_dependencies(ctx);
 
-  // Handle -repro
-  if (ctx.arg.repro)
-    write_repro_file(ctx);
-
   // Handle --require-defined
   for (Symbol<E> *sym : ctx.arg.require_defined)
     if (!sym->file)

src/passes.cc

@@ -1305,8 +1305,8 @@ void fixup_ctors_in_init_array(Context<E> &ctx) {
           reverse_contents(*isec);
 }
 
-template <typename T>
-static void shuffle(std::vector<T> &vec, u64 seed) {
+template <typename E>
+static void shuffle(std::vector<InputSection<E> *> &vec, u64 seed) {
   if (vec.empty())
     return;
 
@@ -1402,18 +1402,16 @@ void compute_section_sizes(Context<E> &ctx) {
   Timer t(ctx, "compute_section_sizes");
 
   if constexpr (needs_thunk<E>) {
-    std::vector<Chunk<E> *> vec = ctx.chunks;
-
-    auto mid = std::partition(vec.begin(), vec.end(), [&](Chunk<E> *chunk) {
+    auto tail = ranges::partition(ctx.chunks, [&](Chunk<E> *chunk) {
       return chunk->to_osec() && (chunk->shdr.sh_flags & SHF_EXECINSTR) &&
              !ctx.arg.relocatable;
     });
 
     // create_range_extension_thunks is not thread-safe
-    for (Chunk<E> *chunk : std::span(vec.begin(), mid))
+    for (Chunk<E> *chunk : std::span(vec.begin(), tail.begin()))
       chunk->to_osec()->create_range_extension_thunks(ctx, true);
 
-    tbb::parallel_for_each(mid, vec.end(), [&](Chunk<E> *chunk) {
+    tbb::parallel_for_each(tail.begin(), tail.end(), [&](Chunk<E> *chunk) {
       chunk->compute_section_size(ctx);
     });
   } else {