llvm: add TEST rule.
llvm: add TEST rule.

koletzky/haikuports,miqlas/haikuports,moochris/haikuports,Begasus/haikuports,nielx/haikuports,koletzky/haikuports,moochris/haikuports,Begasus/haikuports,nielx/haikuports,haikuports/haikuports,koletzky/haikuports,Begasus/haikuports,miqlas/haikuports,miqlas/haikuports,moochris/haikuports,Begasus/haikuports,haikuports/haikuports,haikuports/haikuports,Begasus/haikuports,nielx/haikuports,haikuports/haikuports,haikuports/haikuports