[include-cleaner] NFC, move the macro location fixme to findHeaders.

Author: hokein

clang-tools-extra/include-cleaner/lib/Analysis.cpp

@@ -36,7 +36,6 @@ void walkUsed(llvm::ArrayRef<Decl *> ASTRoots,
   }
   for (const SymbolReference &MacroRef : MacroRefs) {
     assert(MacroRef.Target.kind() == Symbol::Macro);
-    // FIXME: Handle macro locations.
     return CB(MacroRef,
               findHeaders(MacroRef.Target.macro().Definition, SM, PI));
   }

clang-tools-extra/include-cleaner/lib/FindHeaders.cpp

@@ -18,6 +18,7 @@ llvm::SmallVector<Header> findHeaders(const SymbolLocation &Loc,
   llvm::SmallVector<Header> Results;
   switch (Loc.kind()) {
   case SymbolLocation::Physical: {
+    // FIXME: Handle macro locations.
     // FIXME: Handle non self-contained files.
     FileID FID = SM.getFileID(Loc.physical());
     const auto *FE = SM.getFileEntryForID(FID);