Add documentation about boxing enum types and a codegen test to make
sure we pick up the underlying type, per suggestion by Fariborz.

No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156851 91177308-0d34-0410-b5e6-96231b3b80d8
Add the Objective-C runtime linking arguments after user-specified
linker arguments. Fixes <rdar://problem/11417441>. 


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156853 91177308-0d34-0410-b5e6-96231b3b80d8
Don't use the implicit int rule for error recovery in C++. Instead, try to
disambiguate whether the type name was forgotten or mistyped.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156854 91177308-0d34-0410-b5e6-96231b3b80d8
If we see a declaration which is either missing a type or has a malformed type,
and the thing we have has a scope specifier, and we're in a context that doesn't
allow declaring a qualified name, then the error is a malformed type, not a
missing type.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156856 91177308-0d34-0410-b5e6-96231b3b80d8
Typo.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156860 91177308-0d34-0410-b5e6-96231b3b80d8
Don't warn when NULL is used within a macro but its conversion is outside a macro.

This fixes the included test case & was reported by Nico Weber.

It's a little bit nasty using the difference in the conversion context, but
seems to me like a not unreasonable solution. I did have to fix up the
conversion context for conditional operators (it seems correct to me to include
the context for which we're actually doing the comparison - across all the
nested conditionals, rather than the innermost conditional which might not
actually have the problematic implicit conversion at all) and template default
arguments (this is a bit of a hack, since we don't have the source location of
the '=' anymore, so I just used the start of the parameter - open to
suggestions there)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156861 91177308-0d34-0410-b5e6-96231b3b80d8
[objcmt] Rewrite messages to NSString's stringWithUTF8String:/stringWithCString:
to use the @() boxing syntax.

It will also rewrite uses of stringWithCString:encoding: where the encoding that is
used is NSASCIIStringEncoding or NSUTF8StringEncoding.

rdar://11438360

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156868 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Fix a regression in ObjCUnusedIVars checker.

We can no longer rely on children iterator to visit all the AST
tree children of an expression (OpaqueValueExpr has no children).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156870 91177308-0d34-0410-b5e6-96231b3b80d8
objective-c: perform strict type checking on property
type and its accessor type and issue error if types
are incompatible, instead of crashing in IRgen.
// rdar://1105153


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156871 91177308-0d34-0410-b5e6-96231b3b80d8
[objcmt] When using NSNumber numberWithInteger:/numberWithUnsignedInteger: be
more liberal in rewriting when the parameter is an enum constant.

Part of rdar://11438360

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156873 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Add a test for dead stores, which uses OpaqueValExpr.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156875 91177308-0d34-0410-b5e6-96231b3b80d8
[objcmt] Accept char arrays for rewriting to @() syntax.

Part of rdar://11438360

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156880 91177308-0d34-0410-b5e6-96231b3b80d8
[libclang/AST] Index references of protocols in "@protocol(...)" syntax.

To do that, keep track of the location of the protocol id in the ObjCProtocolExpr
AST node.

rdar://11190837

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156890 91177308-0d34-0410-b5e6-96231b3b80d8
Fix the visibility of instantiations of static data members.
Fixes pr12835.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156897 91177308-0d34-0410-b5e6-96231b3b80d8
Include the correct conversion context locations for condition expressions.

This improves the conversion diagnostics (by correctly pointing to the loop
construct for conversions that may've been caused by the contextual conversion
to bool caused by a condition expression) and also causes the NULL conversion
warnings to be correctly suppressed when crossing a macro boundary in such a
context. (previously, since the conversion context location was incorrect, the
suppression could not be performed)

Reported by Nico Weber as feedback to r156826.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156901 91177308-0d34-0410-b5e6-96231b3b80d8
Produce more useful 'duplicate case' diagnostics. Fixes PR9243, from Terry Long!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156904 91177308-0d34-0410-b5e6-96231b3b80d8
[tsan] add  ThreadSanitizer linker flags on Linux and also copy the tsan-rt into the appropriate place at build time

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156906 91177308-0d34-0410-b5e6-96231b3b80d8
[tsan] first version of ThreadSanitizer docs

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156910 91177308-0d34-0410-b5e6-96231b3b80d8
Clarify how libstdc++ and other bits of the system toolchain are found
on Linux in the getting started documentation.

Patch by Nathan Ridge.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156911 91177308-0d34-0410-b5e6-96231b3b80d8
[tsan] fix typo

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156912 91177308-0d34-0410-b5e6-96231b3b80d8