[libclang] In cxtu::getASTUnit(), check for a null CXTranslationUnit.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@179121 91177308-0d34-0410-b5e6-96231b3b80d8
[c-index-test] Enable 'display diagnostics' when using the -test-load functionality.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@179123 91177308-0d34-0410-b5e6-96231b3b80d8
Adding new AST Matchers isVirtual and isOverride

isVirtual - matches CXXMethodDecl nodes for virtual methods
isOverride - matches CXXMethodDecl nodes for methods that override virtual methods from a base class.

Author: Philip Dunstan <phil@philipdunstan.com>


git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@179126 91177308-0d34-0410-b5e6-96231b3b80d8
Updating cpp11-migrate transform list in ClangTools docs

Author: Philip Dunstan <phil@phildunstan.com>


git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@179128 91177308-0d34-0410-b5e6-96231b3b80d8