make all bionic death tests not dumpable

Bug: 18067305

Change-Id: Ia1ecacf47eddecc9bc58aaac779e0c218f463179
Merge "make all bionic death tests not dumpable"
Fix our <complex.h> support.

We build libm with -fvisibility=hidden, so we weren't exporting any
of the <complex.h> functions.

We also weren't building many of the functions anyway.

We were also missing the complex inverse trigonometric functions.

And because we didn't even have perfunctory "call each function once"
tests, we didn't notice that we weren't exporting any symbols, so this
patch adds at least that level of testing.

Change-Id: Ibcf2843f507126c51d134cc5fc8d67747e033a0d
Merge "Fix our <complex.h> support."