VM: Use delay slot in two places in MIPS intrinis code.

runtime/vm/intrinsifier_arm.cc

Index: runtime/vm/intrinsifier_arm.cc
diff --git a/runtime/vm/intrinsifier_arm.cc b/runtime/vm/intrinsifier_arm.cc
index 1b825a3c977880faabefe59a37337368c26c0f41..7afb021a674fc120dd0e5cc3d931dc86771a457e 100644
--- a/runtime/vm/intrinsifier_arm.cc
+++ b/runtime/vm/intrinsifier_arm.cc
@@ -1326,7 +1326,7 @@ static void DoubleArithmeticOperations(Assembler* assembler, Token::Kind kind) {
     __ SmiUntag(R0);
     __ vmovsr(S0, R0);
     __ vcvtdi(D1, S0);
-    __ b(&double_op);  // Then do the comparison.
+    __ b(&double_op);
     __ Bind(&fall_through);
   }
 }