Add FABS intrinsic to the integrated ARM assembler.

src/DartARM32/assembler_arm.h

Index: src/DartARM32/assembler_arm.h
diff --git a/src/DartARM32/assembler_arm.h b/src/DartARM32/assembler_arm.h
index 8c1b9011a272117c95b4e1762ca0b20d193807d1..1c94799930249f1dc57f385007d43f07cc26cc3f 100644
--- a/src/DartARM32/assembler_arm.h
+++ b/src/DartARM32/assembler_arm.h
@@ -731,8 +731,12 @@ class Assembler : public ValueObject {
   void vcugtqi(OperandSize sz, QRegister qd, QRegister qn, QRegister qm);
   void vcgtqs(QRegister qd, QRegister qn, QRegister qm);
 
+#if 0
+  // Moved to Arm32::AssemblerARM32::vabss()
   void vabss(SRegister sd, SRegister sm, Condition cond = AL);
+  // Moved to Arm32::AssemblerARM32::vabsd()
   void vabsd(DRegister dd, DRegister dm, Condition cond = AL);
+#endif
   void vabsqs(QRegister qd, QRegister qm);
   void vnegs(SRegister sd, SRegister sm, Condition cond = AL);
   void vnegd(DRegister dd, DRegister dm, Condition cond = AL);