[NFC] Add some TODO comments for cleanup.

Author: varungandhi-apple

lib/AST/ASTDumper.cpp

@@ -3792,6 +3792,7 @@ namespace {
 
       OS << "\n";
       Indent += 2;
+      // [TODO: Improve-Clang-type-printing]
       if (!T->getClangTypeInfo().empty()) {
         std::string s;
         llvm::raw_string_ostream os(s);
@@ -3842,6 +3843,7 @@ namespace {
       OS << '\n';
       T->getInvocationSubstitutions().dump(OS, SubstitutionMap::DumpStyle::Full,
                                            Indent+2);
+      // [TODO: Improve-Clang-type-printing]
       if (!T->getClangTypeInfo().empty()) {
         std::string s;
         llvm::raw_string_ostream os(s);

lib/SIL/IR/AbstractionPattern.cpp

@@ -827,6 +827,7 @@ void AbstractionPattern::print(raw_ostream &out) const {
     }
     getType().dump(out);
     out << ", ";
+    // [TODO: Improve-Clang-type-printing]
     // It would be better to use print, but we need a PrintingPolicy
     // for that, for which we need a clang LangOptions, and... ugh.
     clang::QualType(getClangType(), 0).dump();