Move TextTokenRetokenizer from CommentLexer.h to CommentParser.cpp since it is
an implementation detail of the parser.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160679 91177308-0d34-0410-b5e6-96231b3b80d8
Comment parsing: couple TextTokenRetokenizer and comment parser together to
remove one of the two variable-length lookahead buffers.  Now retokenizer will
ask for more tokens when it needs them.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160680 91177308-0d34-0410-b5e6-96231b3b80d8
Tweak warning text for returning incomplete type from extern "C" functions.

A warning was added in r150128 for returning non-C compatible
user-defined types from functions with C linkage.

This makes the text more clear for the case when the type isn't
decidedly non-C compatible, but incomplete.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160681 91177308-0d34-0410-b5e6-96231b3b80d8
Comment parsing: allow newlines between \param, direction specification (e.g.,
[in]), parameter name and description paragraph.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160682 91177308-0d34-0410-b5e6-96231b3b80d8
ABIArgInfo's constructor is private and only used by the static get* methods.
No need to abuse default arguments.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160684 91177308-0d34-0410-b5e6-96231b3b80d8
Don't use a temporary file.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160686 91177308-0d34-0410-b5e6-96231b3b80d8
Pedantic -pedantic correction. Duplicate cv-qualifiers are permitted in C++11
unless they appear in a decl-specifier-seq.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160688 91177308-0d34-0410-b5e6-96231b3b80d8
CommentSema: simplify functions, per Jordan's comment.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160689 91177308-0d34-0410-b5e6-96231b3b80d8
When a && or || appears as the condition of a ?:, perform appropriate
short-circuiting when building the CFG. Also be sure to skip parens before
checking for the && / || special cases. Finally, fix some crashes in CFG
printing in the presence of calls to destructors for array of array of class
type.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160691 91177308-0d34-0410-b5e6-96231b3b80d8
Comment diagnostics: add warning for multiple \param commands with duplicate
parameter names.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160696 91177308-0d34-0410-b5e6-96231b3b80d8
Comment diagnostics tests: add a function with zero arguments, for completeness.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160697 91177308-0d34-0410-b5e6-96231b3b80d8
Add __has_feature(attribute_availability_with_message).

This tests for the ability to include a "message" field in availability
attributes, like so:

  extern void ATSFontGetName(const char *oName)
    __attribute__((availability(macosx,introduced=8.0,deprecated=9.0,
                                message="use CTFontCopyFullName")));

This was actually supported in Clang 3.1, but we got a request for a
__has_feature so that header files can use this more safely. It's
unfortunate that the 3.1 release doesn't include this, however.

<rdar://problem/11886458>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160699 91177308-0d34-0410-b5e6-96231b3b80d8
Comment parsing tests: fix test


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160700 91177308-0d34-0410-b5e6-96231b3b80d8