FIx a typo in SIMMIPS min/max and enable min_max_test for SIMMIPS by splitting the main functions i…

runtime/vm/intermediate_language_mips.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"  // Needed here to get TARGET_ARCH_MIPS.
 #if defined(TARGET_ARCH_MIPS)
 
 #include "vm/intermediate_language.h"
 
 #include "lib/error.h"
@@ skipping 3110 matching lines @@
       __ coltd(left, right);
     } else {
       __ coltd(right, left);
     }
     // TODO(zra): Add conditional moves.
     __ bc1t(&returns_left);
     __ movd(result, right);
     __ b(&done);
 
     __ Bind(&returns_left);
-    __ movd(result, right);
+    __ movd(result, left);
     __ b(&done);
 
     __ Bind(&returns_nan);
     __ LoadImmediate(result, NAN);
     __ b(&done);
 
     __ Bind(&are_equal);
     Label left_is_negative;
     // Check for negative zero: -0.0 is equal 0.0 but min or max must return
     // -0.0 or 0.0 respectively.
@@ skipping 705 matching lines @@
   compiler->GenerateCall(token_pos(),
                          &label,
                          PcDescriptors::kOther,
                          locs());
   __ Drop(2);  // Discard type arguments and receiver.
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_MIPS