a cast to the same type is allowed so long as it does not cast away constness.

Fix for PR11747. Patch by Aaron Ballman. Reviewed by Eli.

llvm-svn: 149664

Refactor capture in blocks to use new-style capture hooks.  Start adding a bit of the code for lambdas.  The only visible changes are that we use the C++11 odr-used rules to figure out when a variable is captured, and type-checking in lambdas is slightly more accurate.

llvm-svn: 149663

Note whether a lambda is mutable in the LambdaScopeInfo; this information will be necessary to handle references to captured variables.

llvm-svn: 149660

a builtin.

llvm-svn: 149657

it is treated as of 'id' type resulting in multiple method lookup.
// rdar://10686120

llvm-svn: 149653

llvm-svn: 149641

llvm-svn: 149639

Initialize the user defined conversion function to null if this is an aggregate initialization from an initializer list.

Found by valgrind.

llvm-svn: 149627

type in continuation class.

llvm-svn: 149625

property to 'readwrite', also allow redeclaration of
property type to a narrowring object type.
// rdar://10790488

llvm-svn: 149614

llvm-svn: 149610

Split Sema::MarkDeclarationReferenced into multiple functions; the additional entry points are needed to implement C++11 odr-use marking correctly.  No functional change in this patch; I'll actually make the change which fixes the odr-use marking in a followup patch.

llvm-svn: 149586

is declaring ivars. // rdar://10752081

llvm-svn: 149573

Change the check for constant-conversion with width-1 bitfields so it doesn't suppress quite as many cases.  Based off a testcase in the gcc testsuite.

llvm-svn: 149572

llvm-svn: 149559

changing the diagnostic. Also use correct spelling for both.

llvm-svn: 149554

argument in strncat.

The warning is ignored by default since it needs more qualification. 

TODO: The warning message and the note are messy when
strncat is a builtin due to the macro expansion.

llvm-svn: 149524

llvm-svn: 149517

cleans up and improves a few things:
  - We get rid of the ugly dance of computing all of the captures in
  data structures that clone those of CapturingScopeInfo, centralizing
  the logic for accessing/updating these data structures
  - We re-use the existing capture logic for 'this', which actually
  works now.

Cleaned up some diagnostic wording in minor ways as well.

llvm-svn: 149516

type, be sure to add the qualifier for the enumeration type.

llvm-svn: 149471

a literal type. Disallow it as the return type of a constexpr function
declaration.

llvm-svn: 149469

  - Actually building the var -> capture mapping properly (there was an off-by-one error)
  - Keeping track of the source location of each capture
  - Minor QoI improvements, e.g, highlighing the prior capture if
  there are multiple captures, pointing at the variable declaration we
  found if we reject it.

As part of this, add standard citations for the various semantic
checks we perform, and note where we're not performing those checks as
we should.

llvm-svn: 149462

Fixes PR11847. Patch from Jason Haslam!

llvm-svn: 149460

llvm-svn: 149458

llvm-svn: 149451

CFBridgingRetain/CFBridgingRelease calls instead
of __bridge_retained/__bridge_transfer casts as preferred
way of moving cf objects to arc land. // rdar://10207950

llvm-svn: 149449

llvm-svn: 149441

llvm-svn: 149440

Revert r149359.  This was a hack to a problem with an easy workaround, and it doesn't feel like general solution.

llvm-svn: 149404

llvm-svn: 149394

Don't warn about -Wshorten-64-to-32 in unreachable code.  Fixes <rdar://problem/10759934>.  Apparently this is a common idiom in Linux (among other places).

llvm-svn: 149359

llvm-svn: 149358

As discussed at http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20120130/052200.html

llvm-svn: 149325

expressions in C++11.

llvm-svn: 149286

This is to prevent diagnostic when using NSLocalizedString or CFCopyLocalizedString
macros which are usually used in place of NS and CF strings literals.

llvm-svn: 149268

llvm-svn: 149253

- Remove the printf0 special handling as we treat it as printf anyway.
- Perform basic checks (non-literal, empty) for all formats and not only printf/scanf.

llvm-svn: 149236

  @import <complete with module names here>

or

  @import std.<complete with submodule names here>

Addresses <rdar://problem/10710117>.

llvm-svn: 149199

like Darwin that don't support it.  We should also complain about
invalid -fvisibility=protected, but that information doesn't seem
to exist at the most appropriate time, so I've left a FIXME behind.

llvm-svn: 149186

llvm-svn: 149127