integers which have the same width and different signedness work 
correctly. (The testcase in PR2501 uses a comparison between long and 
unsigned int).

llvm-svn: 52853

  Added TagKind enum.
  Added getTagKind() method.
  Added convenience methods: isEnum(), isStruct(), isUnion(), isClass().
-RecordDecl/CXXRecordDecl::Create() accept a TagKind enum instead of a DeclKind one.

llvm-svn: 52160

llvm-svn: 52035

llvm-svn: 52034

llvm-svn: 52033

Reuse RecordLayout.

llvm-svn: 51968

Move field layout code in a ASTRecordLayout member fn.

llvm-svn: 51966

Moved LangOptions from TranslationUnit to ASTContext.  This induced a variety of cleanups in some ASTConsumers.

llvm-svn: 51943

llvm-svn: 51939

and union codepaths and fixes some minor bugs.

I'm reasonably confident this is accurate, at least for X86.  I'll 
correct any bugs as I find them; I haven't found any for a while, 
though.

llvm-svn: 51762

llvm-svn: 51575

the destruction of Decls and Stmts.

llvm-svn: 51385

llvm-svn: 51380

llvm-svn: 51322

llvm-svn: 49942

-Added TranslationUnitDecl class to serve as top declaration context
-ASTContext gets a TUDecl member and a getTranslationUnitDecl() function
-All ScopedDecls get the TUDecl as DeclContext when declared at global scope

llvm-svn: 49855

llvm-svn: 49621

llvm-svn: 49328

llvm-svn: 49327

llvm-svn: 49326

llvm-svn: 49325

llvm-svn: 49324

llvm-svn: 49323

and fix a bug.

llvm-svn: 49322

if MyClass is a superclass of MyOtherClass, there is no need for
an exact interface match.

llvm-svn: 49320

llvm-svn: 49319

llvm-svn: 49318

llvm-svn: 49316

llvm-svn: 49315

llvm-svn: 49314

While it is similar to the other compatibility predicates in ASTContext,
it is not used by them and is different.

In addition, greatly simplify ObjCQualifiedIdTypesAreCompatible and
fix some canonical type bugs.  Also, simplify my Type::getAsObjC* methods.

llvm-svn: 49313

an O(n) algorithm by taking advantage of the fact that the
protocol qualifier list is already guaranteed sorted.

llvm-svn: 49312

sema.  This allows clients of the parser to have the unmolested 
list if desired, and guarantees that noone can create an
ObjCQualifiedInterfaceType with an unsorted list.

llvm-svn: 49310

ObjCQualifiedIdType/ObjCQualifiedInterfaceType, adding an interator 
interface instead.

llvm-svn: 49308

and start simplifying it.

llvm-svn: 49307

ObjCInterfaceType as a method.

llvm-svn: 49306

a static function named isCompatibleInterfaceAssign.

llvm-svn: 49305

llvm-svn: 49302

there are QualType::getAsObjc* type methods, and make isa<ObjCInterfaceType>
return true for ObjCQualifiedInterfaceType's.

llvm-svn: 49300

llvm-svn: 49298