Remove a FIXME that's not planned to be fixed.  We only generated crash
diagnostics for the first failing command.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178086 91177308-0d34-0410-b5e6-96231b3b80d8
<rdar://problem/13267210> Ensure that Sema::CompareReferenceRelationship returns consistent results with invalid types.

When Sema::RequireCompleteType() is given a class template
specialization type that then fails to instantiate, it returns
'true'. On subsequent invocations, it can return false. Make sure that
this difference doesn't change the result of
Sema::CompareReferenceRelationship, which is expected to remain stable
while we're checking an initialization sequence.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178088 91177308-0d34-0410-b5e6-96231b3b80d8
[driver] Do not generate crash diagnostics if the compilation command failed
to execute as the crash will surely reoccur while generating the diagnostics.
rdar://13362359


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178089 91177308-0d34-0410-b5e6-96231b3b80d8
Remove magic number usage from CGDebugInfo with new DICompositeType::setContainingType

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178092 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Make sure IDC works for ‘NSContainer value/key is nil’ checks.

Register the nil tracking visitors with the region and refactor trackNullOrUndefValue a bit.

Also adds the cast and paren stripping before checking if the value is an OpaqueValueExpr
or ExprWithCleanups.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178093 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Better test for r178063.

Jordan pointed out that my previously committed test was bogus.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178094 91177308-0d34-0410-b5e6-96231b3b80d8