Replace assert() with project-specific version.

Our convention is to use our own form of assertion (bccAssert,
rsAssert, slangAssert) rather than C standard assertion (assert)
because the latter is disabled for the Android build process.
However, a few instances of assert() somehow made it through.

Bug 21444723

Change-Id: I899b0bf6d87672e524d2cc926a0ddf7af9fad71b
1 file changed