[JITLink] Remove the Section::symbols_empty() method.

llvm::empty(Sec.symbols()) can be used instead.

Author: lhames

llvm/include/llvm/ExecutionEngine/JITLink/JITLink.h

@@ -581,9 +581,6 @@ class Section {
   /// Return the number of symbols in this section.
   SymbolSet::size_type symbols_size() { return Symbols.size(); }
 
-  /// Return true if this section contains no symbols.
-  bool symbols_empty() const { return Symbols.empty(); }
-
 private:
   void addSymbol(Symbol &Sym) {
     assert(!Symbols.count(&Sym) && "Symbol is already in this section");
@@ -618,7 +615,7 @@ class SectionRange {
 public:
   SectionRange() = default;
   SectionRange(const Section &Sec) {
-    if (Sec.symbols_empty())
+    if (llvm::empty(Sec.symbols()))
       return;
     First = Last = *Sec.symbols().begin();
     for (auto *Sym : Sec.symbols()) {

llvm/tools/llvm-jitlink/llvm-jitlink-macho.cpp

@@ -90,12 +90,12 @@ Error registerMachOStubsAndGOT(Session &S, LinkGraph &G) {
   for (auto &Sec : G.sections()) {
     LLVM_DEBUG({
       dbgs() << "  Section \"" << Sec.getName() << "\": "
-             << (Sec.symbols_empty() ? "empty. skipping." : "processing...")
+             << (llvm::empty(Sec.symbols()) ? "empty. skipping." : "processing...")
              << "\n";
     });
 
     // Skip empty sections.
-    if (Sec.symbols_empty())
+    if (llvm::empty(Sec.symbols()))
       continue;
 
     if (FileInfo.SectionInfos.count(Sec.getName()))

llvm/tools/llvm-jitlink/llvm-jitlink.cpp

@@ -174,11 +174,11 @@ static void dumpSectionContents(raw_ostream &OS, LinkGraph &G) {
 
   std::sort(Sections.begin(), Sections.end(),
             [](const Section *LHS, const Section *RHS) {
-              if (LHS->symbols_empty() && RHS->symbols_empty())
+              if (llvm::empty(LHS->symbols()) && llvm::empty(RHS->symbols()))
                 return false;
-              if (LHS->symbols_empty())
+              if (llvm::empty(LHS->symbols()))
                 return false;
-              if (RHS->symbols_empty())
+              if (llvm::empty(RHS->symbols()))
                 return true;
               SectionRange LHSRange(*LHS);
               SectionRange RHSRange(*RHS);
@@ -187,7 +187,7 @@ static void dumpSectionContents(raw_ostream &OS, LinkGraph &G) {
 
   for (auto *S : Sections) {
     OS << S->getName() << " content:";
-    if (S->symbols_empty()) {
+    if (llvm::empty(S->symbols())) {
       OS << "\n  section empty\n";
       continue;
     }