Remove obsolete #ifdefs excluding MIPS target.

runtime/vm/compiler_test.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/assert.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/object.h"
 #include "vm/symbols.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
-// Compiler only implemented on IA32, X64, and ARM.
-#if defined(TARGET_ARCH_IA32) ||                                               \
-    defined(TARGET_ARCH_X64) ||                                                \
-    defined(TARGET_ARCH_ARM)
-
 TEST_CASE(CompileScript) {
   const char* kScriptChars =
       "class A {\n"
       "  static foo() { return 42; }\n"
       "}\n";
   String& url = String::Handle(String::New("dart-test:CompileScript"));
   String& source = String::Handle(String::New(kScriptChars));
   Script& script = Script::Handle(Script::New(url,
                                               source,
                                               RawScript::kScriptTag));
@@ skipping 31 matching lines @@
 
   String& function_moo_name = String::Handle(String::New("moo"));
   Function& function_moo =
       Function::Handle(cls.LookupStaticFunction(function_moo_name));
   EXPECT(!function_moo.IsNull());
 
   EXPECT(CompilerTest::TestCompileFunction(function_moo));
   EXPECT(function_moo.HasCode());
 }
 
-#endif  // TARGET_ARCH_IA32 || TARGET_ARCH_X64 || TARGET_ARCH_ARM
-
 }  // namespace dart