Put friend decls in the correct context.

When we find a friend declaration we have to skip transparent contexts for doing
lookups, but we should not skip them when inserting the new decl if the lookup
found nothing.

Fixes PR15841.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180571 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Teach DeadStoreChecker to look though BO_Comma and disregard the LHS.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180579 91177308-0d34-0410-b5e6-96231b3b80d8
Objective-C: This is a small modification to my
patch -n r180198.
When reporting on missing property accessor implementation in
categories, do not report when they are declared in primary class,
class's protocol, or one of it super classes or in of the other
categories. // rdar://13713098


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180580 91177308-0d34-0410-b5e6-96231b3b80d8
Add Static Analyzer section to the Release Notes for clang 3.3

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180582 91177308-0d34-0410-b5e6-96231b3b80d8
Revert r180263. It's causing failures.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180583 91177308-0d34-0410-b5e6-96231b3b80d8
Further wordsmith release notes for the static analyzer.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180585 91177308-0d34-0410-b5e6-96231b3b80d8
Add a testcase for a recent regression.

Thanks to Bill Wendling for the original testcase.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180586 91177308-0d34-0410-b5e6-96231b3b80d8
Add r180263 back, but fix hasBraces() to be correct during parsing.

Original commit message:

Fix a case in linkage computation that should check for single line extern "C".

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180591 91177308-0d34-0410-b5e6-96231b3b80d8
Support debug info for using directives at global/namespace scope.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180594 91177308-0d34-0410-b5e6-96231b3b80d8
Use bitfilds.

On a 32 bit build this moves LinkageSpecDecl from 52 to 48 bytes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180601 91177308-0d34-0410-b5e6-96231b3b80d8
C++1y: support simple variable assignments in constexpr functions.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180603 91177308-0d34-0410-b5e6-96231b3b80d8
Implement C++1y decltype(auto).


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180610 91177308-0d34-0410-b5e6-96231b3b80d8
Comment parsing: -fparse-all-comments: recognize empty line comments

In -fparse-all-comments mode empty '//' comments were recognized as
RCK_Invalid, and were not merged with next and previous lines.

Patch by Amin Shali.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180625 91177308-0d34-0410-b5e6-96231b3b80d8
Documentation: improve description of make_shared transformation, as suggested by David Blaikie


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180627 91177308-0d34-0410-b5e6-96231b3b80d8
[driver] Implement the -fdebug-compilation-dir in a way that is compatible with
gcc.  No test case included as I'm having problems finding a test case where
the inode/dev don't match.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180628 91177308-0d34-0410-b5e6-96231b3b80d8
document parsing. When a sub-class (c++ Objective-C) missing 
a comment, grab the first comment found in its class
heirarchy. Also, when a category is mossing a comment,
grab comment of its primary class. // rdar://13647476


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180629 91177308-0d34-0410-b5e6-96231b3b80d8
ArrayRefize code. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180632 91177308-0d34-0410-b5e6-96231b3b80d8
[frontend] Make -chain-include work when used with modules.

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[Modules] Fix an issue where the reconstructed redeclaration chain was incomplete, missing the definition from a module.

-Make sure that a deserialized external decl gets added to the TU scope.
-When associating an identifier with a set of decls, use the most recent local ones,
  if they exist, otherwise associating decls from modules (that came after a local one)
  will lead to an incomplete reconstructed re-declaration chain.

rdar://13712705

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180634 91177308-0d34-0410-b5e6-96231b3b80d8
[PCH/modules] Require the preprocessing record option to match the used PCH, if modules are enabled.

The preprocessing record becomes important when modules are enabled, since it is used to calculate the
module cache hash.

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