little file location inconsistency in build

observed that

StaticAnalyzer/Checkers/Checkers.inc

is build in
$BUILD_ROOT/llvm/tools/clang/lib
instead of

$BUILD_ROOT/llvm/tools/clang/include/clang
as other “inc” files

also as “coding best practice” shouldn’t includes like

lib/StaticAnalyzer/Checkers/ClangSACheckers.h
contain

#include “clang/StaticAnalyzer/Checkers/Checkers.inc”

instead of

#include “Checkers.inc”

would help a lot for people using “custom” build system