clang-format: Improve token breaking behavior.

Two changes:
* Don't add an extra penalty on breaking the same token multiple times.
  Generally, we should prefer not to break, but once we break, the
  normal line breaking penalties apply.
* Slightly increase the penalty for breaking comments. In general, the
  author has put some thought into how to break the comment and we
  should not overwrite this unnecessarily.

With a 40-column column limit, formatting
  aaaaaa("aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaa");

Leads to:
Before:
  aaaaaa(
      "aaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaa "
      "aaaaaaaaaaaaaaaa");

After:
  aaaaaa("aaaaaaaaaaaaaaaa "
         "aaaaaaaaaaaaaaaa "
         "aaaaaaaaaaaaaaaa");

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189466 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Add support for testing the presence of weak functions.

When casting the address of a FunctionTextRegion to bool, or when adding
constraints to such an address, use a stand-in symbol to represent the
presence or absence of the function if the function is weakly linked.
This is groundwork for possible simple availability testing checks, and
can already catch mistakes involving inverted null checks for
weakly-linked functions.

Currently, the implementation reuses the "extent" symbols, originally created
for tracking the size of a malloc region. Since FunctionTextRegions cannot
be dereferenced, the extent symbol will never be used for anything else.
Still, this probably deserves a refactoring in the future.

This patch does not attempt to support testing the presence of weak
/variables/ (global variables), which would likely require much more of
a change and a generalization of "region structure metadata", like the
current "extents", vs. "region contents metadata", like CStringChecker's
"string length".

Patch by Richard <tarka.t.otter@googlemail.com>!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189492 91177308-0d34-0410-b5e6-96231b3b80d8
PR16995: Failing to associate static members with their enclosing class

In the transition from declaration (with some members) to definition, we
were overwriting the list of members with the empty list when attaching
template parameters.

The fix is in llvm::DICompositeType::addMember (along with asserts that
cause this bug to be covered by existing Clang test cases), including
adding some asserts to catch this sort of issue which found issues fixed
in this commit.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189494 91177308-0d34-0410-b5e6-96231b3b80d8
clang-cl: Pass -debug to the linker when using -fsanitize=address

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189496 91177308-0d34-0410-b5e6-96231b3b80d8
Debug Info testing case: move uuid-related testing to a separate file.

Seperate the parts related to uuid from debug-info-template.cpp to
debug-info-uuid.cpp since Itanium mangler does not have support for mangling
uuid yet.

Remove -fms-extensions from RUN line of debug-info-template.cpp.
RUN line of debug-info-uuid.cpp has -fms-extensions and -cxx-abi microsoft.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189498 91177308-0d34-0410-b5e6-96231b3b80d8
Add support for eachOf/allOf/anyOf variadic matchers in the dynamic layer.

Summary:
Add support for eachOf/allOf/anyOf variadic matchers in the dynamic layer.
These function require some late binding behavior for the type conversions, thus changes in VariadicValue's MatcherList.
Second try. This time with a fix for C++11 builds.

Reviewers: klimek

CC: cfe-commits, revane

Differential Revision: http://llvm-reviews.chandlerc.com/D1536

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189500 91177308-0d34-0410-b5e6-96231b3b80d8
Comments for r189494

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189504 91177308-0d34-0410-b5e6-96231b3b80d8
[doxygen] Added code for generating doxygen documentation for clang for cmake.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189508 91177308-0d34-0410-b5e6-96231b3b80d8
[doxygen] Added support for doxygen external search.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189509 91177308-0d34-0410-b5e6-96231b3b80d8
Improve error for assignment to incomplete class.

PR7681.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189510 91177308-0d34-0410-b5e6-96231b3b80d8
Handle -D arguments ending in a backslash.

We translate these into #define directives; to preserve gcc-compatible
semantics (where the expanded macro includes the backslash), we add
an extra "\\\n" to the end of the synthesized "#define".

<rdar://problem/14810220>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189511 91177308-0d34-0410-b5e6-96231b3b80d8
For methods where clang automatically infers instancetype from the selector 
(e.g., all -init* methods), no need to suggest "instancetype" because it 
is redundant.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189514 91177308-0d34-0410-b5e6-96231b3b80d8
Fix "//" comments with -traditional-cpp in C++.

Apparently, gcc's -traditional-cpp behaves slightly differently in C++ mode;
specifically, it discards "//" comments.  Match gcc's behavior.

<rdar://problem/14808126>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189515 91177308-0d34-0410-b5e6-96231b3b80d8
More comments for r189494.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189516 91177308-0d34-0410-b5e6-96231b3b80d8
Debug Info testing case: update uuid testing case to check against Itanium.

Right now, the output for Itanium vs. Microsoft is the same. Once we start
calling mangler to get the unique identifier, this testing case will require
support for uuid mangling.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189518 91177308-0d34-0410-b5e6-96231b3b80d8
Debug Info: update interface for CreateEnumType and getOrCreateRecordFwdDecl.

Both functions will take a Type pointer instead of a Decl pointer. This helps
with follow-up type uniquing patches, which need the Type pointer to call
CXX mangler to generate unique identifiers.

No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189519 91177308-0d34-0410-b5e6-96231b3b80d8
ObjectiveC migrator: In suggesting 'instancetype' use clang's
hasRelatedResultType() as it knows of methods which have
related result type by default. Such methods do not need
a redundant 'instancetype'.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189520 91177308-0d34-0410-b5e6-96231b3b80d8
Format. Thanks David for pointing it out.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189521 91177308-0d34-0410-b5e6-96231b3b80d8
[doxygen] Add a few missing variables to the doxygen.cfg.in for external search and cleaned up external_search_map.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189523 91177308-0d34-0410-b5e6-96231b3b80d8
DebugInfo: Further fix/improvements to r189494 (and LLVM r189495).

Selfhosting was crashing with the same type of problem but involving
template specializations.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@189530 91177308-0d34-0410-b5e6-96231b3b80d8