[llvm-objdump][NFC] MachODump.cpp interface cleanup

Continuing from D77388, this patch moves interface declarations
associated with `MachODump.cpp` into the headers corresponding to the
file that defines the variable. At the same time, these externs are
moved into the `llvm::objdump` namespace. The externs defined in
`MachODump.cpp` that are not referenced outside of it are given internal
linkage.

This patch does not rename the external functions defined by
`MachODump.cpp` that are not clearly named as being specific to Mach-O.

Reviewed By: jhenderson, MaskRay

Differential Revision: https://reviews.llvm.org/D77730

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/tools/llvm-objdump/llvm-objdump.cpp b/llvm/tools/llvm-objdump/llvm-objdump.cpp
index 2f9c6f1..f407f14 100644
--- a/llvm/tools/llvm-objdump/llvm-objdump.cpp
+++ b/llvm/tools/llvm-objdump/llvm-objdump.cpp
@@ -345,10 +345,8 @@ static cl::alias WideShort("w", cl::Grouping, cl::aliasopt(Wide));
 static cl::extrahelp
     HelpResponse("\nPass @FILE as argument to read options from FILE.\n");
 
-namespace llvm {
-
 static StringSet<> DisasmSymbolSet;
-StringSet<> FoundSectionSet;
+StringSet<> objdump::FoundSectionSet;
 static StringRef ToolName;
 
 namespace {
@@ -386,6 +384,8 @@ static FilterResult checkSectionFilter(object::SectionRef S) {
           /*IncrementIndex=*/true};
 }
 
+namespace llvm {
+
 SectionFilter ToolSectionFilter(object::ObjectFile const &O, uint64_t *Idx) {
   // Start at UINT64_MAX so that the first index returned after an increment is
   // zero (after the unsigned wrap).