Fixed Fractal shader
Fixed Fractal shader

The issue was with continue and break, where a previous loop was
decrementing the breakDepth/continueDepth before we started
incrementing it.

BUG=18069149

Change-Id: I39fa9c07ea373cd9dab4997bfb8a9e621bf48b29
Reviewed-on: https://swiftshader-review.googlesource.com/1473
Tested-by: Alexis Hétu <1c7141772178a7e80858c3db5052b328076f08f4@google.com>
Reviewed-by: Nicolas Capens <51edc787c30f24c4904e8ffbb5523c3a9f7a451d@google.com>

bkaradzic/SwiftShader,google/swiftshader,bkaradzic/SwiftShader,google/swiftshader,bkaradzic/SwiftShader,bkaradzic/SwiftShader,google/swiftshader,bkaradzic/SwiftShader