[lldb] Remove redundant control flow statements (NFC) (#141183)

Author: kazutakahirata

lldb/include/lldb/Interpreter/ScriptInterpreter.h

@@ -500,10 +500,8 @@ class ScriptInterpreter : public PluginInterface {
     return false;
   }
 
-  virtual void OptionParsingStartedForCommandObject(
-      StructuredData::GenericSP cmd_obj_sp) {
-    return;
-  }
+  virtual void
+  OptionParsingStartedForCommandObject(StructuredData::GenericSP cmd_obj_sp) {}
 
   virtual uint32_t
   GetFlagsForCommandObject(StructuredData::GenericSP cmd_obj_sp) {

lldb/include/lldb/Target/Process.h

@@ -605,7 +605,7 @@ class Process : public std::enable_shared_from_this<Process>,
 
   /// The underlying plugin might store the low-level communication history for
   /// this session.  Dump it into the provided stream.
-  virtual void DumpPluginHistory(Stream &s) { return; }
+  virtual void DumpPluginHistory(Stream &s) {}
 
   /// Launch a new process.
   ///

lldb/source/Commands/CommandObjectDiagnostics.cpp

@@ -96,7 +96,6 @@ class CommandObjectDiagnosticsDump : public CommandObjectParsed {
     result.GetOutputStream() << "diagnostics written to " << *directory << '\n';
 
     result.SetStatus(eReturnStatusSuccessFinishResult);
-    return;
   }
 
   CommandOptions m_options;

lldb/source/Commands/CommandObjectTarget.cpp

@@ -649,8 +649,6 @@ class CommandObjectTargetDelete : public CommandObjectParsed {
     result.GetOutputStream().Printf("%u targets deleted.\n",
                                     (uint32_t)num_targets_to_delete);
     result.SetStatus(eReturnStatusSuccessFinishResult);
-
-    return;
   }
 
   OptionGroupOptions m_option_group;

lldb/source/Plugins/ScriptInterpreter/Python/Interfaces/ScriptedPythonInterface.h

@@ -463,7 +463,6 @@ class ScriptedPythonInterface : virtual public ScriptedInterface {
   template <typename T, typename U>
   void ReverseTransform(T &original_arg, U transformed_arg, Status &error) {
     // If U is not a PythonObject, don't touch it!
-    return;
   }
 
   template <typename T>

lldb/source/Plugins/SymbolFile/DWARF/AppleDWARFIndex.cpp

@@ -263,7 +263,6 @@ void AppleDWARFIndex::GetTypes(
     m_module.LogMessage(log, "FindByNameAndTag()");
   const dw_tag_t expected_tag = context[0].tag;
   SearchFor(*m_apple_types_up, expected_name, callback, expected_tag);
-  return;
 }
 
 void AppleDWARFIndex::GetNamespaces(