lli: Switch to using ParseIRFile, for consistency with other LLVM tools.

 - Also, switch tests to not using llvm-as. They run 20% faster now, not that it matters.

llvm-svn: 118952
diff --git a/llvm/test/ExecutionEngine/test-call.ll b/llvm/test/ExecutionEngine/test-call.ll
index 4464ebd..27e16f0 100644
--- a/llvm/test/ExecutionEngine/test-call.ll
+++ b/llvm/test/ExecutionEngine/test-call.ll
@@ -1,5 +1,4 @@
-; RUN: llvm-as %s -o %t.bc
-; RUN: lli %t.bc > /dev/null
+; RUN: lli %s > /dev/null
 
 declare void @exit(i32)