Revert "ART: Refactor typedef to using"

This reverts commit 9a20ff06f7ccee08a742c315ec6d351ab56ba1cd.

Reason for revert: Attributes on the wrong side.

Bug: 32619234
Change-Id: I8fd2abef619b22c02ccfbf5ae629339f1a60918b
diff --git a/compiler/utils/mips/assembler_mips_test.cc b/compiler/utils/mips/assembler_mips_test.cc
index 4f8ccee..f137c60 100644
--- a/compiler/utils/mips/assembler_mips_test.cc
+++ b/compiler/utils/mips/assembler_mips_test.cc
@@ -37,11 +37,11 @@
                                                mips::FRegister,
                                                uint32_t> {
  public:
-  using Base = AssemblerTest<mips::MipsAssembler,
-                             mips::MipsLabel,
-                             mips::Register,
-                             mips::FRegister,
-                             uint32_t>;
+  typedef AssemblerTest<mips::MipsAssembler,
+                        mips::MipsLabel,
+                        mips::Register,
+                        mips::FRegister,
+                        uint32_t> Base;
 
   // These tests were taking too long, so we hide the DriverStr() from AssemblerTest<>
   // and reimplement it without the verification against `assembly_string`. b/73903608