If the omission was intentional, please add a comment.

llvm-svn: 111657

llvm-svn: 111656

llvm-svn: 111655

llvm-svn: 111654

llvm-svn: 111653

llvm-svn: 111652

checking to places which previously lacked it.

llvm-svn: 111651

trivial default constructors. We're weren't zero-initializing them,
which manifested as <rdar://problem/8320532> (a regression in the GCC
test suite) and is likely to have caused significant other breakage.

llvm-svn: 111650

llvm-svn: 111649

errs() instead of outs() for its verbose messages.

llvm-svn: 111648

llvm-svn: 111646

llvm-svn: 111645

llvm-svn: 111644

pending output errors are detected.

llvm-svn: 111643

outside of outs() and errs() themselves, and they don't really
need custom classes.

llvm-svn: 111642

llvm-svn: 111641

llvm-svn: 111640

class which is using it.

llvm-svn: 111639

llvm-svn: 111638

(instead of sign extending) to match ICC.  GCC is changing this in 
a series of their own PRs (e.g. 41323).

llvm-svn: 111637

*Huge* improvement over the amount of deserializing that we do for C++ lookup.
e.g, if he have the Carbon header precompiled and include it on a file containing this:

int x;

these are the before/after stats:

BEFORE:

*** AST File Statistics:
  578 stat cache hits
  4 stat cache misses
  548/30654 source location entries read (1.787695%)
  15907/16501 types read (96.400223%)
  53525/59955 declarations read (89.275291%)
  33993/43525 identifiers read (78.099945%)
  41516/51891 statements read (80.006165%)
  77/5317 macros read (1.448185%)
  0/6335 lexical declcontexts read (0.000000%)
  1/5424 visible declcontexts read (0.018437%)

AFTER using the on-disk table:

*** AST File Statistics:
  578 stat cache hits
  4 stat cache misses
  548/30654 source location entries read (1.787695%)
  10/16501 types read (0.060602%)
  9/59955 declarations read (0.015011%)
  161/43525 identifiers read (0.369902%)
  20/51891 statements read (0.038542%)
  6/5317 macros read (0.112846%)
  0/6335 lexical declcontexts read (0.000000%)
  2/5424 visible declcontexts read (0.036873%)

There's only one issue affecting mostly the precompiled preambles which I will address soon.

llvm-svn: 111636

Introduce the mechanism for building an AST on-disk hash table for name lookup inside a DeclContext but don't use it yet.

llvm-svn: 111635

MakeTypeID template function which accepts a type and a function object that returns a TypeIdx.

MakeTypeID is in PCHCommon.h so that it can be used by ASTReader too.

llvm-svn: 111634

No functionality change.

llvm-svn: 111633

No functionality change.

llvm-svn: 111632

llvm-svn: 111631

Disambiguate and provide some type safety by using a new class TypeIdx for the "TypeID as index" semantics.

llvm-svn: 111630

Share the common code of ComputeHash(Selector Sel) instead of keeping 2 copies in PCHReader and PCHWriter.
No functionality change.

llvm-svn: 111629

llvm-svn: 111627

llvm-svn: 111626

llvm-svn: 111625

Thanks to Jianzhou Zhao for finding this.

llvm-svn: 111624

llvm-svn: 111623

of stopping at the first embedded quote.

llvm-svn: 111622

llvm-svn: 111621

Since they now live in the namespace 'autogenerated'.

llvm-svn: 111620

llvm-svn: 111619

llvm-svn: 111618

llvm-svn: 111617

llvm-svn: 111616