Reviewed by: Chris Lattner

- Fix for C++ casting operators failing during parsing. Deriving the C++ cast
  expressions from CastExpr was the wrong way to go. Its constructor creates
  null QualTypes in one of its constructors. This doesn't work well with how
  the C++ casting expression class wanted to do things. Derive just from Expr
  instead.

llvm-svn: 39714

llvm-svn: 39713

llvm-svn: 39712

llvm-svn: 39711

codegen support for +=.

llvm-svn: 39710

- The && at the end was causing this to fail. Removed.

llvm-svn: 39709

llvm-svn: 39708

llvm-svn: 39707

llvm-svn: 39706

llvm-svn: 39705

llvm-svn: 39704

llvm-svn: 39703

llvm-svn: 39702

recent changes.  carbon.h now preprocesses just fine.

llvm-svn: 39701

For example, for:

int test(short S, long L) {
  return S /= L;
}

record that the division is done as a long, even though the result type is
short.

llvm-svn: 39700

Update with -parse-ast-check.

llvm-svn: 39699

Missing support for LLVM casting operators.

llvm-svn: 39698

Small cleanup. No need to assign to a variable before returning.

llvm-svn: 39697

Fixed checking to coincide with the correct lines.

llvm-svn: 39696

- Revert use of -parse-ast-check.

llvm-svn: 39695

llvm-svn: 39694

llvm-svn: 39693

llvm-svn: 39692

llvm-svn: 39691

llvm-svn: 39690

- Chris noticed that if there were multiple warnings/errors expected
  throughout the file and we were checking only one of them, then it
  would go ahead and say that the whole file was okay. Fixed this by
  adding a check for the line number as well as the string.

llvm-svn: 39689

Reviewed by: Chris Lattner

Split up lines to have only one expected output per line. Restored some
checks.

llvm-svn: 39688

Reviewed by: Chris Lattner

- Reverted some checks because they're checking the preprocessor output.

llvm-svn: 39687

Removed unnecessary typedef.

llvm-svn: 39686

some ivars to more obvious names, eliminating some comments.

llvm-svn: 39685

llvm-svn: 39684

llvm-svn: 39683

this produces:

warn.c:4:3: warning: expression result unused
  X == Y;
  ^~~~~~
warn.c:5:3: warning: expression result unused
  (void)X;
  ^~~~~~~
warn.c:11:3: warning: expression result unused
  A == foo(1, 2);
  ^~~~~~~~~~~~~~
warn.c:13:3: warning: expression result unused
  foo(1,2)+foo(4,3);
  ^~~~~~~~~~~~~~~~~

llvm-svn: 39682

- Converted to use the -parse-ast-check flag.

llvm-svn: 39681

- Convert to using the -parse-ast-check method to check warnings and
  errors.

llvm-svn: 39680

- Shouldn't increment the iterator but a copy of it.

llvm-svn: 39679

Reviewed by: Chris Lattner

- Added a new diagnostic client, TextDiagnosticBuffer. It buffers all
  reported diagnostics.
- Use the new diagnostic client to check that expected diagnostics are
  actually emitted. The way this is done is to put the expected
  diagnostic in a comment on the line you expect it to be emitted for.
  Like this:

    int X = A; // expected-warning {{blah}}

- Use -parse-ast-check to use this feature.

llvm-svn: 39678

llvm-svn: 39677

- Separate out the AST streamers from the clang.cpp file into their very
  own special files.

llvm-svn: 39676

Submitted by: Bill Wendling

- Convert std::cerr to using fprintf(stderr, ...) instead.

llvm-svn: 39675