[clang][NFC] Remove const_cast from Preprocessor::addModuleMacro()

Author: Endilll

clang/include/clang/Lex/Preprocessor.h

@@ -1010,7 +1010,7 @@ class Preprocessor {
   llvm::FoldingSet<ModuleMacro> ModuleMacros;
 
   /// The names of potential module macros that we've not yet processed.
-  llvm::SmallVector<const IdentifierInfo *, 32> PendingModuleMacroNames;
+  llvm::SmallVector<IdentifierInfo *, 32> PendingModuleMacroNames;
 
   /// The list of module macros, for each identifier, that are not overridden by
   /// any other module macro.
@@ -1432,7 +1432,7 @@ class Preprocessor {
                                MacroDirective *MD);
 
   /// Register an exported macro for a module and identifier.
-  ModuleMacro *addModuleMacro(Module *Mod, const IdentifierInfo *II,
+  ModuleMacro *addModuleMacro(Module *Mod, IdentifierInfo *II,
                               MacroInfo *Macro,
                               ArrayRef<ModuleMacro *> Overrides, bool &IsNew);
   ModuleMacro *getModuleMacro(Module *Mod, const IdentifierInfo *II);

clang/lib/Lex/PPLexerChange.cpp

@@ -804,7 +804,7 @@ Module *Preprocessor::LeaveSubmodule(bool ForPragma) {
   llvm::SmallPtrSet<const IdentifierInfo*, 8> VisitedMacros;
   for (unsigned I = Info.OuterPendingModuleMacroNames;
        I != PendingModuleMacroNames.size(); ++I) {
-    const auto *II = PendingModuleMacroNames[I];
+    auto *II = PendingModuleMacroNames[I];
     if (!VisitedMacros.insert(II).second)
       continue;
 

clang/lib/Lex/PPMacroExpansion.cpp

@@ -129,7 +129,7 @@ void Preprocessor::setLoadedMacroDirective(IdentifierInfo *II,
     II->setHasMacroDefinition(false);
 }
 
-ModuleMacro *Preprocessor::addModuleMacro(Module *Mod, const IdentifierInfo *II,
+ModuleMacro *Preprocessor::addModuleMacro(Module *Mod, IdentifierInfo *II,
                                           MacroInfo *Macro,
                                           ArrayRef<ModuleMacro *> Overrides,
                                           bool &New) {
@@ -162,7 +162,7 @@ ModuleMacro *Preprocessor::addModuleMacro(Module *Mod, const IdentifierInfo *II,
   // The new macro is always a leaf macro.
   LeafMacros.push_back(MM);
   // The identifier now has defined macros (that may or may not be visible).
-  const_cast<IdentifierInfo *>(II)->setHasMacroDefinition(true);
+  II->setHasMacroDefinition(true);
 
   New = true;
   return MM;