Fix to dex verifier to handle float types that look like Boolean.

Addresses http://code.google.com/p/android/issues/detail?id=23465, where
a Float value is potentially 0x0 or Float.MIN_VALUE (0x1), which combines
into a Boolean type, which should be allowed to be promoted to Float.

(cherry picked from commit 2a249c50)

Change-Id: I1b81fad5e1e166246535bdfa4b7a98db3b2531bf

vm/analysis/CodeVerify.cpp

@@ -272,7 +272,7 @@ static bool canConvertTo1nr(RegType srcType, RegType checkType)
         /* chk: 0  1  Z  y  Y  h  H  c  i  b  B  s  S  C  I  F */
         { /*0*/ 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
         { /*1*/ 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
-        { /*Z*/ 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0 },
+        { /*Z*/ 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
         { /*y*/ 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
         { /*Y*/ 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1 },
         { /*h*/ 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1 },