Properly track l-paren of a CXXFucntionalCastExpr.

In addition to storing more useful information in the AST, this
fixes a semantic check in template instantiation which checks whether
the l-paren location is valid.

Fixes PR16903.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@188495 91177308-0d34-0410-b5e6-96231b3b80d8
Fix assert added in r188494

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@188496 91177308-0d34-0410-b5e6-96231b3b80d8
ObjetiveC migrator: fix the test in my last patch
to define real CF_RETURNS_RETAINED/CF_NO_RETURNS_RETAINED
pairs.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@188497 91177308-0d34-0410-b5e6-96231b3b80d8
DebugInfo: Split out the implementation of getStaticDataMemberDeclaration for future use

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@188498 91177308-0d34-0410-b5e6-96231b3b80d8
Remove unnecessary explicit cast.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@188500 91177308-0d34-0410-b5e6-96231b3b80d8
DebugInfo: CollectRecordStaticField -> CreateRecordStaticField to return its result.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@188501 91177308-0d34-0410-b5e6-96231b3b80d8