Make the Objective-C checker look for subclasses of NSString instead of just NSString and NSMutableString.

llvm-svn: 127268

conventional categories into Basic and AST.  Update the self-init checker
to use this logic;  CFRefCountChecker is complicated enough that I didn't
want to touch it.

llvm-svn: 126817

In preparation for fixing PR 6884, rework CFGElement to have getAs<> return pointers instead of fresh CFGElements.

- Also, consoldiate getDtorKind() and getKind() into one "kind".
- Add empty getDestructorDecl() method to CFGImplicitDtor.

llvm-svn: 126738

llvm-svn: 126735

llvm-svn: 126734

and hope the wrath of the buildbots will not descend upon me.

llvm-svn: 126728

llvm-svn: 126726

llvm-svn: 126725

llvm-svn: 126724

llvm-svn: 126690

They cooperate in that NSErrorChecker listens for ImplicitNullDerefEvent events that
DereferenceChecker can dispatch.
ImplicitNullDerefEvent is when we dereferenced a location that may be null.

llvm-svn: 126659

llvm-svn: 126629

llvm-svn: 126626

llvm-svn: 126625

llvm-svn: 126624

llvm-svn: 126623

llvm-svn: 126622

llvm-svn: 126621

llvm-svn: 126620

llvm-svn: 126619

llvm-svn: 126618

llvm-svn: 126617

llvm-svn: 126616

llvm-svn: 126615

llvm-svn: 126614

llvm-svn: 126613

-Now it gets enabled with '-analyzer-checker=DeadStores'.
-The driver passes the above flag by default.

llvm-svn: 126612

llvm-svn: 126611

llvm-svn: 126610

Turns -analyzer-check-buffer-overflows into -analyzer-checker=core.experimental.Overflow

llvm-svn: 126609

llvm-svn: 126608

llvm-svn: 126607

llvm-svn: 126606

llvm-svn: 126523

llvm-svn: 126522

Intoduce '-analyzer-checker-help' flag which outputs a list of all available static analyzer checkers.

This is pretty basic for now, eventually checkers should be grouped according to package, hidden checkers should be indicated etc.

llvm-svn: 126454

[analyzer] Remove '-analyzer-experimental-internal-checks' flag, it doesn't have any checkers associated with it anymore.

llvm-svn: 126440

For example, if 'core.experimental.UnreachableCode' is hidden, it should not be enabled with 'core.experimental'.
Note that this requires llvm commit r126436.

llvm-svn: 126439

llvm-svn: 126438

llvm-svn: 126371