a co-committed clang patch.

llvm-svn: 100485

instantiating some folding set stuff that GCC isn't, requiring 
some types to not be incomplete.

I don't know if clang is right or wrong, but unbreaking the
bot is goodness.  Here's the broken build:
http://google1.osuosl.org:8011/builders/clang-x86_64-darwin10-selfhost/builds/1813/steps/compile.llvm.stage2/logs/stdio

llvm-svn: 100418

llvm-svn: 100410

llvm-svn: 100409

llvm-svn: 100408

llvm-svn: 100407

llvm-svn: 100406

instead of going through DwarfWriter.

llvm-svn: 100405

need it anymore, so don't addRequire it.

llvm-svn: 100400

llvm-svn: 100386

llvm-svn: 100385

llvm-svn: 100381

llvm-svn: 100377

llvm-svn: 100375

llvm-svn: 100374

simplifying a bunch of code.

llvm-svn: 100373

2) change DwarfDebug to not inherit from DwarfPrinter.

llvm-svn: 100372

llvm-svn: 100371

llvm-svn: 100369

llvm-svn: 100368

which is really a property of the section being referenced.
Add a predicate to MCSection to replace it.

Yay for reduction in magic.

llvm-svn: 100367

regtest failures.

llvm-svn: 100366

llvm-svn: 100365

llvm-svn: 100364

llvm-svn: 100363

sections instead of magically rematerializing them later.

llvm-svn: 100362

descriptive, change EmitSectionOffset back to taking a
symbol instead of a string.

llvm-svn: 100361

llvm-svn: 100360

constant fold it away.

llvm-svn: 100356

llvm-svn: 100355

and substitute false at the one call site.

llvm-svn: 100354

llvm-svn: 100351

llvm-svn: 100350

llvm-svn: 100349

llvm-svn: 100348

llvm-svn: 100347

llvm-svn: 100346

them for consistency.

llvm-svn: 100345

llvm-svn: 100344

llvm-svn: 100343