Split up CommonTest into CommonRuntimeTest and CommonCompilerTest

Change-Id: I8dcf6b29a5aecd445f1a3ddb06386cf81dbc9c70
diff --git a/runtime/utils.cc b/runtime/utils.cc
index 68d8417..df1ab94 100644
--- a/runtime/utils.cc
+++ b/runtime/utils.cc
@@ -1232,7 +1232,7 @@
 
     execv(program, &args[0]);
 
-    *error_msg = StringPrintf("Failed to execv(%s): %s", command_line.c_str(), strerror(errno));
+    PLOG(FATAL) << "Failed to execv(" << command_line << ")";
     return false;
   } else {
     if (pid == -1) {