Add implicit null checks for the optimizing compiler

- for backends: arm, arm64, x86, x86_64
- fixed parameter passing for CodeGenerator
- 003-omnibus-opcodes test verifies that NullPointerExceptions work as
expected

Change-Id: I1b302acd353342504716c9169a80706cf3aba2c8
diff --git a/compiler/optimizing/constant_folding_test.cc b/compiler/optimizing/constant_folding_test.cc
index ed7e57b..6ceccfb 100644
--- a/compiler/optimizing/constant_folding_test.cc
+++ b/compiler/optimizing/constant_folding_test.cc
@@ -19,6 +19,7 @@
 #include "code_generator_x86.h"
 #include "constant_folding.h"
 #include "dead_code_elimination.h"
+#include "driver/compiler_options.h"
 #include "graph_checker.h"
 #include "optimizing_unit_test.h"
 #include "pretty_printer.h"
@@ -45,7 +46,7 @@
   std::string actual_before = printer_before.str();
   ASSERT_EQ(expected_before, actual_before);
 
-  x86::CodeGeneratorX86 codegen(graph);
+  x86::CodeGeneratorX86 codegen(graph, CompilerOptions());
   HConstantFolding(graph).Run();
   SSAChecker ssa_checker_cf(&allocator, graph);
   ssa_checker_cf.Run();