Improve & simplify diagnostic for missing 'class' in template template parameter.

Change suggested by Sebastian Redl on review feedback from r153887.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154102 91177308-0d34-0410-b5e6-96231b3b80d8
Simplify.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154103 91177308-0d34-0410-b5e6-96231b3b80d8
[Lex] HeaderSearch: Introduce a FrameworkCacheEntry structure to hold the FrameworkMap items.
 - No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154104 91177308-0d34-0410-b5e6-96231b3b80d8
[Lex] Add support for 'user specified system frameworks' (see test case).
 - Developers of system frameworks need a way for their framework to be treated as a "system framework" during development. Otherwise, they are unable to properly test how their framework behaves when installed because of the semantic changes (in warning behavior) applied to system frameworks.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154105 91177308-0d34-0410-b5e6-96231b3b80d8
Temporary workaround for bug#12457: turn the 'constexpr function never produces
a constant expression' error into a DefaultError ExtWarn, so that it can be
disabled and is suppressed in system headers. libstdc++4.7 contains some such
functions which we currently can't evaluate as constant expressions.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154115 91177308-0d34-0410-b5e6-96231b3b80d8
Move some MIPS target macro definitions from class Mips32TargetInfoBase
to the base class MipsTargetInfoBase. These macros are applicable for both
32/64-bits targets.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154116 91177308-0d34-0410-b5e6-96231b3b80d8
Require that all static analyzer issues have a category.  As part of this change,
consolidate some commonly used category strings into global references (more of this can be done, I just did a few).

Fixes <rdar://problem/11191537>.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154121 91177308-0d34-0410-b5e6-96231b3b80d8
Make the variant of __builtin_shufflevector that takes the shuffle indexes as a vector actually usable. Patch by David Neto.  PR12465.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154128 91177308-0d34-0410-b5e6-96231b3b80d8
Only emit the getter and setter names if they're not the default
synthesized ones. Reasonable debug info size reduction for objc.

rdar://11179756

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154129 91177308-0d34-0410-b5e6-96231b3b80d8
Enhance testing a bit to make sure that we're omitting the
getter and setter when they're synthesized with the default
names.

rdar://11179756

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154130 91177308-0d34-0410-b5e6-96231b3b80d8
objective-c: Don't warn when a category does not implement a method
declared in its adopted protocol when another category declares it  
because that category will implement it. // rdar://11186449


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154132 91177308-0d34-0410-b5e6-96231b3b80d8
Properly implement the C rules for composite types for qualified pointers in conditionals.  Patch by Tim Northover.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154134 91177308-0d34-0410-b5e6-96231b3b80d8
Implement C90 pedantic warning for duplicate declaration specifiers which are duplicated via a typedef.  Patch by Tim Northover.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154136 91177308-0d34-0410-b5e6-96231b3b80d8
Point the caret at the error for the 'expected namespace name' diagnostic in
a namespace alias declaration.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154138 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer]Fix false positive: pointer might escape through CG*WithData.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154156 91177308-0d34-0410-b5e6-96231b3b80d8
Restrict fixit for missing 'class' in template template parameters.

Based on Doug's feedback to r153887 this omits the FixIt if the following token
isn't syntactically valid for the context. (not a comma, '...', identifier,
'>', or '>>')

There's a bunch of work to handle the '>>' case, but it makes for a much more
pleasant diagnostic in this case.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154163 91177308-0d34-0410-b5e6-96231b3b80d8
Fix diagnostic text for r154163.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154164 91177308-0d34-0410-b5e6-96231b3b80d8