implements a framework that allows us to use information about previously
substituted values to simplify subsequent ones.  Maybe this would be useful
for C++'y stuff, who knows.  We now get:

t.c:4:21: error: invalid operands to binary expression ('size_t' (aka 'unsigned long *') and 'size_t')
  return (size_t) 0 + (size_t) 0;
         ~~~~~~~~~~ ^ ~~~~~~~~~~

on the testcase.  Note that size_t is only aka'd once.

llvm-svn: 84604

pass them down into the ArgToStringFn implementation.  This allows 
redundancy across operands to a diagnostic to be eliminated.

This isn't used yet, so no functionality change.

llvm-svn: 84602

llvm-svn: 84599

<<=, >>= and the rest.

llvm-svn: 84568

  t->~T<A0, A1>()

Fixes PR5213.

llvm-svn: 84545

to '+=', '-=', '*=' and '/=' builtin operators and
fixes a logic bug exposed by doing this.

llvm-svn: 84538

is a standard convesion and not a user-defined
conversion.

llvm-svn: 84525

llvm-svn: 84514

llvm-svn: 84448

are updated.

llvm-svn: 84447

llvm-svn: 84438

 - strcmp -> ==
 - OS.write(II->getName() ...) -> OS << II->getNameStr()
 - Avoid std::string concatenation
 - Use getNameStr().str() when an std::string is really needed.

llvm-svn: 84437

llvm-svn: 84436

llvm-svn: 84428

llvm-svn: 84423

TemplateTypeParmType with the substituted type directly;  instead, replace it
with a SubstTemplateTypeParmType which will note that the type was originally
written as a template type parameter.  This makes it reasonable to preserve
source information even through template substitution.

Also define the new SubstTemplateTypeParmType class, obviously.

For consistency with current behavior, we stringize these types as if they
were the underlying type.  I'm not sure this is the right thing to do.
At any rate, I paled at adding yet another clause to the don't-desugar 'if'
statement, so I extracted a function to do it.  The new function also does
The Right Thing more often, I think:  e.g. if we have a chain of typedefs
leading to a vector type, we will now desugar all but the last one.

llvm-svn: 84412

llvm-svn: 84393

llvm-svn: 84391

 - I have this crazy dream that one day someone will invent a miraculous tool so
   that developers, instead of hand optimizing their source code to obscure its
   intent and decrease its maleability, will instead write what they mean, and
   this strange and wonderful tool -- which I imagine would be called something
   fancy sounding like "an optimizing compiler" -- will make their code fast
   *for* them. With all the saved time, developers could maybe even focus on
   making the magic "optimizing compiler" better!!

 - No intended functionality change, all though I expect the universe to mock me
   for snarkiness.

llvm-svn: 84390

TypeLoc class names to be $(Type classname)Loc.  Rewrite the visitor.
Provide skeleton implementations for all the new TypeLocs.

Handle all cases in PCH.  Handle a few more cases when inserting
location information in SemaType.

It should be extremely straightforward to add new location information
to existing TypeLoc objects now.

llvm-svn: 84386

llvm-svn: 84370

initialization if any of the constructor/initialization arguments are
type-dependent. Fixes PR5224.

llvm-svn: 84365

When resolving the address of an overloaded function or function template, mark the result as referenced.

The most important effect of this is that function templates only referenced by address expressions now get instantiated. This, in turn, means that Hello World compiles with the Apache stdcxx library even when using endl.

llvm-svn: 84363

Taking the address of an overloaded function with an explicit address-of operator wrapped the operator in an implicit cast that added yet another pointer level, leaving us with a corrupted AST, which crashed CodeGen in the test case I've added. Fix this by making FixOverloadedFunctionReference return whether there was an address-of operator and not adding the implicit cast in that case.

llvm-svn: 84362

fixing PR4838.

llvm-svn: 84353

In some dependent contexts, incomplete array types persist into FinalizeDeclaratorGroup. Don't require them to have a complete type. This allows us to compile Hello World with the Apache stdcxx library. If you don't use endl, it even links and runs.

llvm-svn: 84347

llvm-svn: 84346

llvm-svn: 84307

builtin function ambiguity.

llvm-svn: 84289

candidate types in BuiltinCandidateTypeSet::AddPointerWithMoreQualifiedTypeVariants
further trimming the overload candidate set.

llvm-svn: 84281

FIXME in CGCXX.cpp that I would like Anders to
take a look at.

llvm-svn: 84265

patch by Zhanyong Wan!

llvm-svn: 84259

llvm-svn: 84245

llvm-svn: 84242

llvm-svn: 84241

llvm-svn: 84231

TypeLoc records for declarations;  it should not be necessary to represent it
directly in the type system.

Please complain if you were using these classes and feel you can't replicate
previous functionality using the TypeLoc API.

llvm-svn: 84222

llvm-svn: 84217

CheckSpecializationInstantiationRedecl to check for
redeclarations/instantiations. Also fixes a longstanding issue where
our explicit-instantiation location information wasn't as good as it
could have been.

llvm-svn: 84216

llvm-svn: 84189