MIPS: [turbofan] Add new Float32Abs and Float64Abs operators.

src/mips64/assembler-mips64.h

Index: src/mips64/assembler-mips64.h
diff --git a/src/mips64/assembler-mips64.h b/src/mips64/assembler-mips64.h
index 8bc8c836da2fcaf246849cc7ff75e4b09d4a0714..70f2eefd41bbe174938f7d0607062c3bad4e6975 100644
--- a/src/mips64/assembler-mips64.h
+++ b/src/mips64/assembler-mips64.h
@@ -923,6 +923,7 @@ class Assembler : public AssemblerBase {
   void madd_d(FPURegister fd, FPURegister fr, FPURegister fs, FPURegister ft);
   void div_s(FPURegister fd, FPURegister fs, FPURegister ft);
   void div_d(FPURegister fd, FPURegister fs, FPURegister ft);
+  void abs_s(FPURegister fd, FPURegister fs);
   void abs_d(FPURegister fd, FPURegister fs);
   void mov_d(FPURegister fd, FPURegister fs);
   void neg_s(FPURegister fd, FPURegister fs);