Uncomment more vm tests on ARM (and some on MIPS too).

runtime/vm/stub_code_x64.cc

 // Copyright (c) 2013, 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 "vm/globals.h"
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/assembler.h"
 #include "vm/compiler.h"
 #include "vm/dart_entry.h"
@@ skipping 454 matching lines @@
 void StubCode::GenerateAllocateArrayStub(Assembler* assembler) {
   Label slow_case;
   const Immediate& raw_null =
       Immediate(reinterpret_cast<intptr_t>(Object::null()));
 
   if (FLAG_inline_alloc) {
     // Compute the size to be allocated, it is based on the array length
     // and is computed as:
     // RoundedAllocationSize((array_length * kwordSize) + sizeof(RawArray)).
     // Assert that length is a Smi.
-    __ testq(R10, Immediate(kSmiTagSize));
+    __ testq(R10, Immediate(kSmiTagMask));
     if (FLAG_use_slow_path) {
       __ jmp(&slow_case);
     } else {
       __ j(NOT_ZERO, &slow_case);
     }
     __ movq(R13, FieldAddress(CTX, Context::isolate_offset()));
     __ movq(R13, Address(R13, Isolate::heap_offset()));
     __ movq(R13, Address(R13, Heap::new_space_offset()));
 
     // Calculate and align allocation size.
@@ skipping 1586 matching lines @@
   __ cmpq(left, right);
   __ Bind(&done);
   __ popq(right);
   __ popq(left);
   __ ret();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64