* some SDL functions from SDL1.x and SDL2.x
Fix assertion that all switch-cases break.
Add return-type tracking to normalizeAsm/denormlizeAsm
Don't let buildFlowGraph return to a junction if it's known to be unreachable.
Teach buildFlowGraph about functions that are known to always throw.

It can treat calls to these functions like a jump to function exit,
allowing for more accurate tracking of dead junctions.
Handle non-breaking case bodies in switch statement.

These don't actually flow through to the next case, but we have to
make sure they're properly closed in order to keep our invariants
in order.
Simplify labelled-block handling so it works better with switch statements.
Use standard fds of 0,1,2 rather than 1,2,3
Differentiate between file pointers and file descriptors.
move automatic OES_standard_derivatives enabling behind LEGACY_GL_EMULATION define
enable tests/cases/uadd_overflow_ta2 in fastcomp
add some X11 headers
support EXCEPTION_CATCHING_WHITELIST in fastcomp
enable test_segfault in fastcomp
parse exports from fastcomp, and enable test_llvm_used
comments
enable test_intentional_fault in all fastcomp modes
enable postset counting code in fastcomp on asm1.test_cubescript
comment
sscanf fix and test fix