[llvm-pdbdump] Many minor fixes and improvements

A short list of some of the improvements:

1) Now supports -all command line argument, which implies many
   other command line arguments to simplify usage.
2) Now supports -no-compiler-generated command line argument to
   exclude compiler generated types.
3) Prints base class list.
4) -class-definitions implies -types.
5) Proper display of bitfields.
6) Can now distinguish between struct/class/interface/union.

And a few other minor tweaks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230933 91177308-0d34-0410-b5e6-96231b3b80d8

tools/llvm-pdbdump/CompilandDumper.cpp

@@ -124,7 +124,9 @@ void CompilandDumper::dump(const PDBSymbolThunk &Symbol) {
         << "[" << format_hex(RVA, 10) << " - "
         << format_hex(RVA + Symbol.getLength(), 10) << "]";
   }
-  Printer << " (" << Ordinal << ") ";
+  Printer << " (";
+  WithColor(Printer, PDB_ColorItem::Register).get() << Ordinal;
+  Printer << ") ";
   std::string Name = Symbol.getName();
   if (!Name.empty())
     WithColor(Printer, PDB_ColorItem::Identifier).get() << Name;