[Migrator] Turn off buggy line-level diff in diff-match-patch
[Migrator] Turn off buggy line-level diff in diff-match-patch

This code is too clever to survive and is causing crashes in the
migrator. It doesn't appear to be providing a noticeable performance
benefit, so disable line-level diffing and just do a fine-grained
diff throughout.

rdar://problem/32281108

jmgc/swift,rudkx/swift,tjw/swift,xwu/swift,austinzheng/swift,milseman/swift,devincoughlin/swift,tkremenek/swift,atrick/swift,xedin/swift,uasys/swift,hooman/swift,airspeedswift/swift,natecook1000/swift,huonw/swift,devincoughlin/swift,zisko/swift,benlangmuir/swift,swiftix/swift,roambotics/swift,ahoppen/swift,shajrawi/swift,jopamer/swift,airspeedswift/swift,xwu/swift,parkera/swift,danielmartin/swift,allevato/swift,tkremenek/swift,tjw/swift,swiftix/swift,jckarter/swift,amraboelela/swift,frootloops/swift,frootloops/swift,shajrawi/swift,djwbrown/swift,deyton/swift,zisko/swift,ahoppen/swift,shahmishal/swift,devincoughlin/swift,shahmishal/swift,frootloops/swift,ahoppen/swift,shajrawi/swift,allevato/swift,hooman/swift,devincoughlin/swift,atrick/swift,roambotics/swift,xwu/swift,rudkx/swift,practicalswift/swift,CodaFi/swift,swiftix/swift,CodaFi/swift,huonw/swift,huonw/swift,harlanhaskins/swift,brentdax/swift,frootloops/swift,austinzheng/swift,uasys/swift,felix91gr/swift,jopamer/swift,OscarSwanros/swift,CodaFi/swift,hughbe/swift,natecook1000/swift,jckarter/swift,karwa/swift,stephentyrone/swift,apple/swift,xedin/swift,allevato/swift,xedin/swift,ahoppen/swift,swiftix/swift,xedin/swift,hughbe/swift,airspeedswift/swift,alblue/swift,OscarSwanros/swift,huonw/swift,harlanhaskins/swift,ahoppen/swift,rudkx/swift,practicalswift/swift,djwbrown/swift,stephentyrone/swift,sschiau/swift,harlanhaskins/swift,sschiau/swift,roambotics/swift,hughbe/swift,atrick/swift,brentdax/swift,hughbe/swift,CodaFi/swift,alblue/swift,felix91gr/swift,amraboelela/swift,swiftix/swift,huonw/swift,djwbrown/swift,shahmishal/swift,deyton/swift,karwa/swift,gregomni/swift,parkera/swift,shahmishal/swift,uasys/swift,gribozavr/swift,devincoughlin/swift,brentdax/swift,shahmishal/swift,danielmartin/swift,harlanhaskins/swift,jopamer/swift,deyton/swift,karwa/swift,deyton/swift,danielmartin/swift,return/swift,uasys/swift,practicalswift/swift,glessard/swift,frootloops/swift,austinzheng/swift,roambotics/swift,natecook1000/swift,apple/swift,gribozavr/swift,karwa/swift,nathawes/swift,natecook1000/swift,alblue/swift,tjw/swift,shahmishal/swift,atrick/swift,rudkx/swift,tkremenek/swift,brentdax/swift,xwu/swift,glessard/swift,felix91gr/swift,felix91gr/swift,JGiola/swift,gribozavr/swift,allevato/swift,sschiau/swift,uasys/swift,lorentey/swift,lorentey/swift,swiftix/swift,gregomni/swift,xedin/swift,lorentey/swift,uasys/swift,xwu/swift,tkremenek/swift,deyton/swift,stephentyrone/swift,djwbrown/swift,sschiau/swift,JGiola/swift,milseman/swift,jopamer/swift,tkremenek/swift,jopamer/swift,xedin/swift,hooman/swift,lorentey/swift,jopamer/swift,return/swift,apple/swift,parkera/swift,shajrawi/swift,xedin/swift,swiftix/swift,devincoughlin/swift,jckarter/swift,rudkx/swift,apple/swift,parkera/swift,roambotics/swift,austinzheng/swift,harlanhaskins/swift,aschwaighofer/swift,milseman/swift,jmgc/swift,sschiau/swift,atrick/swift,tkremenek/swift,frootloops/swift,JGiola/swift,benlangmuir/swift,shahmishal/swift,airspeedswift/swift,benlangmuir/swift,huonw/swift,OscarSwanros/swift,shajrawi/swift,atrick/swift,OscarSwanros/swift,danielmartin/swift,brentdax/swift,gribozavr/swift,gribozavr/swift,ahoppen/swift,nathawes/swift,austinzheng/swift,allevato/swift,tjw/swift,alblue/swift,stephentyrone/swift,jckarter/swift,lorentey/swift,milseman/swift,practicalswift/swift,deyton/swift,tkremenek/swift,danielmartin/swift,milseman/swift,apple/swift,return/swift,austinzheng/swift,gribozavr/swift,stephentyrone/swift,glessard/swift,JGiola/swift,danielmartin/swift,xwu/swift,djwbrown/swift,shajrawi/swift,aschwaighofer/swift,amraboelela/swift,deyton/swift,jmgc/swift,tjw/swift,zisko/swift,parkera/swift,zisko/swift,shajrawi/swift,karwa/swift,jopamer/swift,lorentey/swift,JGiola/swift,alblue/swift,zisko/swift,tjw/swift,gribozavr/swift,xwu/swift,zisko/swift,alblue/swift,hughbe/swift,rudkx/swift,aschwaighofer/swift,benlangmuir/swift,return/swift,devincoughlin/swift,gribozavr/swift,airspeedswift/swift,aschwaighofer/swift,djwbrown/swift,karwa/swift,karwa/swift,OscarSwanros/swift,return/swift,alblue/swift,djwbrown/swift,nathawes/swift,hughbe/swift,practicalswift/swift,apple/swift,JGiola/swift,parkera/swift,lorentey/swift,sschiau/swift,nathawes/swift,return/swift,sschiau/swift,jckarter/swift,jmgc/swift,CodaFi/swift,nathawes/swift,allevato/swift,felix91gr/swift,milseman/swift,hughbe/swift,nathawes/swift,stephentyrone/swift,natecook1000/swift,parkera/swift,harlanhaskins/swift,jckarter/swift,amraboelela/swift,danielmartin/swift,benlangmuir/swift,airspeedswift/swift,jmgc/swift,OscarSwanros/swift,jmgc/swift,aschwaighofer/swift,xedin/swift,airspeedswift/swift,OscarSwanros/swift,practicalswift/swift,devincoughlin/swift,hooman/swift,karwa/swift,huonw/swift,milseman/swift,amraboelela/swift,gregomni/swift,gregomni/swift,hooman/swift,amraboelela/swift,hooman/swift,gregomni/swift,parkera/swift,practicalswift/swift,hooman/swift,jckarter/swift,felix91gr/swift,allevato/swift,felix91gr/swift,aschwaighofer/swift,natecook1000/swift,glessard/swift,austinzheng/swift,glessard/swift,aschwaighofer/swift,uasys/swift,brentdax/swift,return/swift,CodaFi/swift,shahmishal/swift,nathawes/swift,practicalswift/swift,frootloops/swift,benlangmuir/swift,natecook1000/swift,zisko/swift,tjw/swift,sschiau/swift,CodaFi/swift,lorentey/swift,harlanhaskins/swift,glessard/swift,roambotics/swift,stephentyrone/swift,gregomni/swift,amraboelela/swift,jmgc/swift,brentdax/swift,shajrawi/swift