Final CL to enable register allocation on x86.

This CL implements:
1) Resolution after allocation: connecting the locations
   allocated to an interval within a block and between blocks.
2) Handling of fixed registers: some instructions require
   inputs/output to be at a specific location, and the allocator
   needs to deal with them in a special way.
3) ParallelMoveResolver::EmitNativeCode for x86.

Change-Id: I0da6bd7eb66877987148b87c3be6a983b4e3f858
diff --git a/compiler/optimizing/codegen_test.cc b/compiler/optimizing/codegen_test.cc
index 7684bb1..8ee775c 100644
--- a/compiler/optimizing/codegen_test.cc
+++ b/compiler/optimizing/codegen_test.cc
@@ -56,7 +56,7 @@
   ASSERT_NE(graph, nullptr);
   InternalCodeAllocator allocator;
   CodeGenerator* codegen = CodeGenerator::Create(&arena, graph, kX86);
-  codegen->Compile(&allocator);
+  codegen->CompileBaseline(&allocator);
   typedef int32_t (*fptr)();
 #if defined(__i386__)
   CommonCompilerTest::MakeExecutable(allocator.GetMemory(), allocator.GetSize());
@@ -66,7 +66,7 @@
   }
 #endif
   codegen = CodeGenerator::Create(&arena, graph, kArm);
-  codegen->Compile(&allocator);
+  codegen->CompileBaseline(&allocator);
 #if defined(__arm__)
   CommonCompilerTest::MakeExecutable(allocator.GetMemory(), allocator.GetSize());
   int32_t result = reinterpret_cast<fptr>(allocator.GetMemory())();