Add DoubleTestOp instruction

runtime/vm/method_recognizer.h

Index: runtime/vm/method_recognizer.h
diff --git a/runtime/vm/method_recognizer.h b/runtime/vm/method_recognizer.h
index 651ee3caf133617b87625dc085eb7c55c5ded543..852ff6d5eccebec289baa72a4a62e2c7014ee78c 100644
--- a/runtime/vm/method_recognizer.h
+++ b/runtime/vm/method_recognizer.h
@@ -46,6 +46,8 @@ namespace dart {
   V(_Double, _sub, DoubleSub, Double, 0x419b3c66)                              \
   V(_Double, _mul, DoubleMul, Double, 0x1a08cbe1)                              \
   V(_Double, _div, DoubleDiv, Double, 0x38d2770f)                              \
+  V(_Double, get:_isNaN, DoubleIsNaN, Bool, 0x09193f42)                        \

[Florian Schneider, 2016/10/18 20:34:21]

You can omit the method here, if it is in the list below. Then, I think you
don't need to add the private getters, and can leave double.dart unchanged.

[zra, 2016/10/18 22:36:32]

Done.

+  V(_Double, get:_isInfinite, DoubleIsInfinite, Bool, 0x34ef4e82)              \
   V(::, min, MathMin, Dynamic, 0x4276561c)                                     \
   V(::, max, MathMax, Dynamic, 0x54121d6a)                                     \
   V(::, _doublePow, MathDoublePow, Double, 0x698eb78d)                         \
@@ -155,7 +157,8 @@ namespace dart {
   V(_Double, -, Double_sub, Double, 0x62052dbb)                                \
   V(_Double, *, Double_mul, Double, 0x23d068d8)                                \
   V(_Double, /, Double_div, Double, 0x48bac1dc)                                \
-  V(_Double, get:isNaN, Double_getIsNaN, Bool, 0x0af8ebeb)                     \
+  V(_Double, get:isNaN, Double_getIsNaN, Bool, 0x0cf86c88)                     \
+  V(_Double, get:isInfinite, Double_getIsInfinite, Bool, 0x0e249b68)           \
   V(_Double, get:isNegative, Double_getIsNegative, Bool, 0x3a58ff36)           \
   V(_Double, _mulFromInteger, Double_mulFromInteger, Double, 0x330e9a36)       \
   V(_Double, .fromInteger, DoubleFromInteger, Double, 0x7ef45843)              \