Patch by Robert Wilhelm.

llvm-svn: 181138

Sooooo many of these had incorrect or strange main module includes.
I have manually inspected all of these, and fixed the main module
include to be the nearest plausible thing I could find. If you own or
care about any of these source files, I encourage you to take some time
and check that these edits were sensible. I can't have broken anything
(I strictly added headers, and reordered them, never removed), but they
may not be the headers you'd really like to identify as containing the
API being implemented.

Many forward declarations and missing includes were added to a header
files to allow them to parse cleanly when included first. The main
module rule does in fact have its merits. =]

llvm-svn: 169131

The rationale is to get YAML filenames in diagnostics from
yaml::Stream::printError -- currently the filename is hard-coded as
"YAML" because there's no buffer information available.

Patch by Kim Gräsman!

llvm-svn: 168341

Fixes PR12632.

llvm-svn: 164701

Remove unused private member variables uncovered by the recent changes to clang's -Wunused-private-field.

llvm-svn: 160583

llvm-svn: 158248

llvm-svn: 156787

llvm-svn: 155907

llvm-svn: 155735

'REPLACEMENT CHARACTER' (U+FFFD) when getAsInteger fails.

llvm-svn: 155653

llvm-svn: 155307

No functionality change.

llvm-svn: 155280

llvm-svn: 154004

llvm-svn: 153979

llvm-svn: 153977