Clang code model throws its hands on error in included file

When one of the included headers includes a non-existing header, code model stops parsing all headers.

Attached is an example project displaying the behavior. `header2.h` includes a non-existent header. If `header.h` is included first, everything works fine. If `header2.h` is included first, a struct defined in `header.h` shows up as "incomplete type" according to the analyzer.

Screenshots also attached.