comment parsing: when property accessors don't have comment
of their own (or are syntheszed), use prperty's comment.
for them. // rdar://12791315


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172278 91177308-0d34-0410-b5e6-96231b3b80d8
Fix -Wunused-comparison for comparisons in arguments to function-like macros.

Previously, -Wunused-comparison ignored comparisons in both macro bodies and
macro arguments, but we would still emit a -Wunused-value warning for either.
Now we correctly emit -Wunused-comparison for expressions in macro arguments.

Also, add isMacroBodyExpansion to SourceManager, to go along with
isMacroArgExpansion.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172279 91177308-0d34-0410-b5e6-96231b3b80d8
Add a test from pr14898.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172283 91177308-0d34-0410-b5e6-96231b3b80d8
Only produce one -Wc++98-compat warning when initializing a reference from an init list with multiple elements.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172285 91177308-0d34-0410-b5e6-96231b3b80d8
Formatter: add a test for :? in []

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172289 91177308-0d34-0410-b5e6-96231b3b80d8
Provide Decl::getOwningModule(), which determines the (sub)module in
which a particular declaration resides. Use this information to
customize the "definition of 'blah' must be imported from another
module" diagnostic with the module the user actually has to
import. Additionally, recover by importing that module, so we don't
complain about other names in that module.

Still TODO: coming up with decent Fix-Its for these cases, and expand
this recovery approach for other name lookup failures.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172290 91177308-0d34-0410-b5e6-96231b3b80d8
Fix a regression from 171193: main cannot be overloaded.
Thanks Eli Friedman for noticing it.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172292 91177308-0d34-0410-b5e6-96231b3b80d8
clang/unittests: Fixup corresponding to r172290.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172295 91177308-0d34-0410-b5e6-96231b3b80d8
Formatter: + and - after { are unary operators.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172301 91177308-0d34-0410-b5e6-96231b3b80d8
Formatter: * and & are binary operators after ) and ].

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172302 91177308-0d34-0410-b5e6-96231b3b80d8
Formatter: * and & are binary operators before ( and [.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172303 91177308-0d34-0410-b5e6-96231b3b80d8
Formatter: Initial support for formatting Objective-C method expressions.        
                                                                                 
This follows the approach suggested by djasper in PR14911: When a '[' is         
seen that's at the start of a line, follows a binary operator, or follows one    
of : [ ( return throw, that '[' and its closing ']' are marked as
TT_ObjCMethodExpr and every ':' in that range that isn't part of a ternary
?: is marked as TT_ObjCMethodExpr as well.

Update the layout routines to not output spaces around ':' tokens that are
marked TT_ObjCMethodExpr, and only allow breaking after such tokens, not
before.

Before:
    [self adjustButton : closeButton_ ofKind : NSWindowCloseButton];

Now:
    [self adjustButton:closeButton_ ofKind:NSWindowCloseButton];



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172304 91177308-0d34-0410-b5e6-96231b3b80d8
Disable caching of visibility.

The testcase in pr14929 shows that this is extremely hard to do. If we choose
to apply the attribute, that causes the visibility of some decls to change and
that can happen really late (during codegen).

Current gcc warns and ignores the attribute in this testcase with a warning.
This suggest that the correct solution is to find a point in the compilation
where we can compute the visibility and
* assert it was never computed before
* reject any attempts to compute it again in the future (with warnings).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172305 91177308-0d34-0410-b5e6-96231b3b80d8
Formatter: Remove a redundant CurrentLineType check.

The containing if checks for this already. No functionality change.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172306 91177308-0d34-0410-b5e6-96231b3b80d8
Formatter: Remove an always-false condition.

canBreakBefore() does not allow breaking after ':' for LT_ObjCMethodDecl lines,
so if Newline is true in addTokenToState() for ':' then LT_ObjCMethodDecl
cannot be set. No functionality change.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172307 91177308-0d34-0410-b5e6-96231b3b80d8
Fix incorrect comparison operator causing loooong formatting times.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172308 91177308-0d34-0410-b5e6-96231b3b80d8
Remove unused private field.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172314 91177308-0d34-0410-b5e6-96231b3b80d8
bar

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172316 91177308-0d34-0410-b5e6-96231b3b80d8
comment

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172317 91177308-0d34-0410-b5e6-96231b3b80d8
Add missing includes and forward declarations so that headers don't depend on
other headers included before them.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172320 91177308-0d34-0410-b5e6-96231b3b80d8