Entity can now refer to declarations that are not visible outside the translation unit.
It is a wrapper of a pointer union, it's either a Decl* for declarations that don't
"cross" translation units, or an EntityImpl* which is associated with the specific "visible" Decl.

Included is a test case for handling fields across translation units.

llvm-svn: 76515

llvm-svn: 76514

llvm-svn: 76513

If it's in an ObjCContainerDecl, its "redeclaration" is the method definition in the corresponding ObjCImplDecl.
If it's in an ObjCImplDecl, its "redeclaration" is the method in the interface.

llvm-svn: 76512

llvm-svn: 76511

Use ObjCInterfaceDecl::getCategoryClassMethod() and ObjCInterfaceDecl::getCategoryInstanceMethod() for the same functionality.

llvm-svn: 76510

Remove Sema::LookupObjCImplementation and replace it with just calling ObjCInterfaceDecl::getImplementation().

llvm-svn: 76509

- Introduce ASTContext::getObjCImplementation() and ASTContext::setObjCImplementation() which use a DenseMap to associate
  an interface/category with its implementation (if one exists).

- Introduce ObjCInterfaceDecl::get/setImplementation() and ObjCCategoryDecl::get/setImplementation() that use the above methods.

- Add a compiler error for when a category is reimplemented.

llvm-svn: 76508

llvm-svn: 76507

llvm-svn: 76506

llvm-svn: 76505

by determining if (B pred (B-A)) is known, as it doesn't handle
overflow correctly.

llvm-svn: 76504

flags set properly.  (hasMemory is clearly irrelevant
when matching 'i', I don't understand what this was
supposed to be doing.)
gcc.apple/asm-block-25.c (test passed before by
accident, but generated code was wrong)

llvm-svn: 76503

to a place where it affects everything.  Occurs
only on calls AFAIK.

llvm-svn: 76502

llvm-svn: 76500

llvm-svn: 76498

pointers.

Enhanced RegionStoreManager::Retrieve() to handle automatic casts when the
loaded value is different from the requested value. This should be refined over
time, but essentially we should always symbolicate locations as locations, and
convert them to non-locations on demand.

These changes now cause 'misc-ps.m' to pass again.

llvm-svn: 76497

llvm-svn: 76496

llvm-svn: 76495

llvm-svn: 76494

llvm-svn: 76493

llvm-svn: 76492

llvm-svn: 76490

llvm-svn: 76489

reducing the size of ParmVarDecl by one pointer. Also means that we'll 
properly (de-)serialize default arguments in C++ PCH files.

llvm-svn: 76487

Re-apply 75490, 75806 and 76177 with fixes and tests.  Efficiency comes
next.

llvm-svn: 76486

llvm-svn: 76485

llvm-svn: 76484

locs and vis versa.

llvm-svn: 76483

llvm-svn: 76481

llvm-svn: 76480

"LinkerPrivatePrefix". It seems to have been used in only one place before I
started this "linker_private" business. I'm thinking that a rename is in
order...

llvm-svn: 76479

llvm-svn: 76476

exact sdiv flags.

llvm-svn: 76475

llvm-svn: 76473

llvm-svn: 76472

llvm-svn: 76469

llvm-svn: 76466

as it no longer depends upon two different enums being kept in sync with each
other.

llvm-svn: 76465

SDiv is a binary operation that can overflow.

llvm-svn: 76464