Fixes bug in typed data read/write for floats and doubles.

runtime/vm/method_recognizer.h

Index: runtime/vm/method_recognizer.h
===================================================================
--- runtime/vm/method_recognizer.h	(revision 44832)
+++ runtime/vm/method_recognizer.h	(working copy)
@@ -367,8 +367,8 @@
   V(_ByteDataView, setUint32, ByteDataViewSetUint32, 284405389)                \
   V(_ByteDataView, setInt64, ByteDataViewSetInt64, 486916661)                  \
   V(_ByteDataView, setUint64, ByteDataViewSetUint64, 1432663320)               \
-  V(_ByteDataView, setFloat32, ByteDataViewSetFloat32, 733187060)              \
-  V(_ByteDataView, setFloat64, ByteDataViewSetFloat64, 1138577739)             \
+  V(_ByteDataView, setFloat32, ByteDataViewSetFloat32, 344976311)              \
+  V(_ByteDataView, setFloat64, ByteDataViewSetFloat64, 1480166018)             \
   V(_ByteDataView, getInt8, ByteDataViewGetInt8, 1383732403)                   \
   V(_ByteDataView, getUint8, ByteDataViewGetUint8, 806641537)                  \
   V(_ByteDataView, getInt16, ByteDataViewGetInt16, 76281079)                   \
@@ -377,8 +377,8 @@
   V(_ByteDataView, getUint32, ByteDataViewGetUint32, 760435927)                \
   V(_ByteDataView, getInt64, ByteDataViewGetInt64, 364361487)                  \
   V(_ByteDataView, getUint64, ByteDataViewGetUint64, 565678407)                \
-  V(_ByteDataView, getFloat32, ByteDataViewGetFloat32, 924006540)              \
-  V(_ByteDataView, getFloat64, ByteDataViewGetFloat64, 1863927528)             \
+  V(_ByteDataView, getFloat32, ByteDataViewGetFloat32, 1979131043)             \
+  V(_ByteDataView, getFloat64, ByteDataViewGetFloat64, 164756117)              \
   V(::, asin, MathASin, 1651042633)                                            \
   V(::, acos, MathACos, 1139647090)                                            \
   V(::, atan, MathATan, 1668754384)                                            \