Also fix crashes when building with `REACTOR_EMIT_DEBUG_INFO`, but
with a no-debug-info build.

Change-Id: I183473a78235b938b44bf4a017f5239c78827285
Bug: b/171236524
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/43811
Kokoro-Result: kokoro <noreply+kokoro@google.com>
Tested-by: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>