Optimize isFinite and isNaN.

src/mips/constants-mips.h

Index: src/mips/constants-mips.h
diff --git a/src/mips/constants-mips.h b/src/mips/constants-mips.h
index ede9688a682fba32d74d7b25166d0d9106c1873e..6bf2570ebd6d8d7b283fb1a8e06b65f640d6ec78 100644
--- a/src/mips/constants-mips.h
+++ b/src/mips/constants-mips.h
@@ -743,9 +743,11 @@ class Instruction {
 // -----------------------------------------------------------------------------
 // MIPS assembly various constants.
 
+
+static const int kArgsSlotsSize  = 4 * Instruction::kInstrSize;
+static const int kArgsSlotsNum   = 4;
 // C/C++ argument slots size.
-static const int kCArgSlotCount = 4;
-static const int kCArgsSlotsSize = kCArgSlotCount * Instruction::kInstrSize;
+static const int kCArgsSlotsSize = 4 * Instruction::kInstrSize;
 // JS argument slots size.
 static const int kJSArgsSlotsSize = 0 * Instruction::kInstrSize;
 // Assembly builtins argument slots size.