Have clang_getSpellingLocation() use the same logic as DiagnosticRenderer for plowing through macros.

This fixes a subtle bug reported in <rdar://problem/12584554> where a double-nested
macro could lead to an incorrect fixit location with live issues.

This fix also uncovers a bunch of subtle bugs in our indexer test cases which
are now fixed (mostly around source ranges for attributes).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170468 91177308-0d34-0410-b5e6-96231b3b80d8

for some cast expressions.

Original commit message:

Removed useless ImplicitCast nodes in explicit cstyle and static casts


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145447 91177308-0d34-0410-b5e6-96231b3b80d8

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145244 91177308-0d34-0410-b5e6-96231b3b80d8

from Manuel Holtgrewe!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141200 91177308-0d34-0410-b5e6-96231b3b80d8

I had to force -fno-delayed-template-parsing on some Index tests because delayed template parsing will change the output of some tests.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138942 91177308-0d34-0410-b5e6-96231b3b80d8

source locations from source locations loaded from an AST/PCH file.

Previously, loading an AST/PCH file involved carefully pre-allocating
space at the beginning of the source manager for the source locations
and FileIDs that correspond to the prefix, and then appending the
source locations/FileIDs used for parsing the remaining translation
unit. This design forced us into loading PCH files early, as a prefix,
whic has become a rather significant limitation.

This patch splits the SourceManager space into two parts: for source
location "addresses", the lower values (growing upward) are used to
describe parsed code, while upper values (growing downward) are used
for source locations loaded from AST/PCH files. Similarly, positive
FileIDs are used to describe parsed code while negative FileIDs are
used to file/macro locations loaded from AST/PCH files. As a result,
we can load PCH/AST files even during parsing, making various
improvemnts in the future possible, e.g., teaching #include <foo.h> to
look for and load <foo.h.gch> if it happens to be already available.

This patch was originally written by Sebastian Redl, then brought
forward to the modern age by Jonathan Turner, and finally
polished/finished by me to be committed.




git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135484 91177308-0d34-0410-b5e6-96231b3b80d8