Minor change to SpecializeClampedRamps.cpp that applies the mutator recursively until the stmt is fixed. This allows us to specialize all of the clamped ramps rather than just the outermost.
Minor change to SpecializeClampedRamps.cpp that applies the mutator recursively until the stmt is fixed. This allows us to specialize all of the clamped ramps rather than just the outermost.

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