the DeclaratorInfo, one for semantic analysis), just build a single type whose
canonical type will reflect the semantic analysis (assuming the type is
well-formed, of course).

To make that work, make a few changes to the type system:
* allow the nominal pointee type of a reference type to be a (possibly sugared)
  reference type.  Also, preserve the original spelling of the reference type.
  Both of these can be ignored on canonical reference types.
* Remove ObjCProtocolListType and preserve the associated source information on
  the various ObjC TypeLocs.  Preserve the spelling of protocol lists except in
  the canonical form.
* Preserve some level of source type structure on parameter types, but
  canonicalize on the canonical function type.  This is still a WIP.

Drops code size, makes strides towards accurate source location representation,
slight (~1.7%) progression on Cocoa.h because of complexity drop.

llvm-svn: 84907

are updated.

llvm-svn: 84447

 - strcmp -> ==
 - OS.write(II->getName() ...) -> OS << II->getNameStr()
 - Avoid std::string concatenation
 - Use getNameStr().str() when an std::string is really needed.

llvm-svn: 84437

llvm-svn: 84237

llvm-svn: 83793

llvm-svn: 83557

llvm-svn: 83448

Add a MangleContext and pass it to all mangle functions. It will be used for keeping state, such as identifiers assigned to anonymous structs as well as scope encoding.

llvm-svn: 83442

llvm-svn: 83420

apparently because using directives aren't quite working correctly.

llvm-svn: 83184

llvm-svn: 82915

llvm-svn: 82912

llvm-svn: 82885

llvm-svn: 82883

llvm-svn: 82882

llvm-svn: 82881

llvm-svn: 82880

llvm-svn: 82879

llvm-svn: 82874

llvm-svn: 82872

llvm-svn: 82871

llvm-svn: 82843

llvm-svn: 82839

llvm-svn: 82833

Type hierarchy.  Demote 'volatile' to extended-qualifier status.  Audit our
use of qualifiers and fix a few places that weren't dealing with qualifiers
quite right;  many more remain.

llvm-svn: 82705

llvm-svn: 82567

llvm-svn: 82557

Several of the existing methods were identical to their respective
specializations, and so have been removed entirely.  Several more 'leaf'
optimizations were introduced.

The getAsFoo() methods which imposed extra conditions, like
getAsObjCInterfacePointerType(), have been left in place.

llvm-svn: 82501

llvm-svn: 82423

llvm-svn: 82265

llvm-svn: 82262

llvm-svn: 82250

llvm-svn: 82247

llvm-svn: 82246

llvm-svn: 82193

llvm-svn: 82189

llvm-svn: 82146

llvm-svn: 82125

llvm-svn: 82123

llvm-svn: 82122