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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