[lldb] Use llvm::unique (NFC) (#136527)

Author: kazutakahirata

lldb/source/Symbol/Symtab.cpp

@@ -642,7 +642,7 @@ void Symtab::SortSymbolIndexesByValue(std::vector<uint32_t> &indexes,
 
   // Remove any duplicates if requested
   if (remove_duplicates) {
-    auto last = std::unique(indexes.begin(), indexes.end());
+    auto last = llvm::unique(indexes);
     indexes.erase(last, indexes.end());
   }
 }
@@ -1151,9 +1151,7 @@ void Symtab::FindFunctionSymbols(ConstString name, uint32_t name_type_mask,
 
   if (!symbol_indexes.empty()) {
     llvm::sort(symbol_indexes);
-    symbol_indexes.erase(
-        std::unique(symbol_indexes.begin(), symbol_indexes.end()),
-        symbol_indexes.end());
+    symbol_indexes.erase(llvm::unique(symbol_indexes), symbol_indexes.end());
     SymbolIndicesToSymbolContextList(symbol_indexes, sc_list);
   }
 }

lldb/source/Target/Target.cpp

@@ -2641,9 +2641,8 @@ Target::GetScratchTypeSystems(bool create_on_demand) {
   }
 
   std::sort(scratch_type_systems.begin(), scratch_type_systems.end());
-  scratch_type_systems.erase(
-      std::unique(scratch_type_systems.begin(), scratch_type_systems.end()),
-      scratch_type_systems.end());
+  scratch_type_systems.erase(llvm::unique(scratch_type_systems),
+                             scratch_type_systems.end());
   return scratch_type_systems;
 }
 

lldb/tools/lldb-dap/Handler/BreakpointLocationsHandler.cpp

@@ -189,8 +189,7 @@ void BreakpointLocationsRequestHandler::operator()(
   // The line entries are sorted by addresses, but we must return the list
   // ordered by line / column position.
   std::sort(locations.begin(), locations.end());
-  locations.erase(std::unique(locations.begin(), locations.end()),
-                  locations.end());
+  locations.erase(llvm::unique(locations), locations.end());
 
   llvm::json::Array locations_json;
   for (auto &l : locations) {