MIPS: Fixes for patch sites if long branches are emitted.

src/mips/codegen-mips.cc

Index: src/mips/codegen-mips.cc
diff --git a/src/mips/codegen-mips.cc b/src/mips/codegen-mips.cc
index e5338dbcc15adbcc69b05e77681260ec13c937e2..1b79433d3760ca1cadbde60c17fee339480e4bb2 100644
--- a/src/mips/codegen-mips.cc
+++ b/src/mips/codegen-mips.cc
@@ -1023,11 +1023,11 @@ void MathExpGenerator::EmitMathExp(MacroAssembler* masm,
     __ Move(double_scratch1, temp3, temp1);
   }
   __ mul_d(result, result, double_scratch1);
-  __ Branch(&done);
+  __ BranchShort(&done);
 
   __ bind(&zero);
   __ Move(result, kDoubleRegZero);
-  __ Branch(&done);
+  __ BranchShort(&done);
 
   __ bind(&infinity);
   __ ldc1(result, ExpConstant(2, temp3));