Efficiency of the code generator about scoria HOT 2 OPEN

COST CENTRE        MODULE                    SRC                                            %time %alloc

best.be.lineLoc    Text.PrettyPrint.Mainland Text/PrettyPrint/Mainland.hs:(609,9)-(618,57)   11.9    3.9
best.be            Text.PrettyPrint.Mainland Text/PrettyPrint/Mainland.hs:(581,5)-(626,33)   10.5   28.9
doMake             Test.Ssm.Build            test/lib/Test/Ssm/Build.hs:(65,1)-(79,51)        6.6    1.5
displayS.go        Text.PrettyPrint.Mainland Text/PrettyPrint/Mainland.hs:(675,5)-(681,67)    4.4   14.6
MAIN               MAIN                      <built-in>                                       3.7    0.2
flatten            Text.PrettyPrint.Mainland Text/PrettyPrint/Mainland.hs:(344,1)-(355,44)    3.2    4.0
>>=.\.(...)        Test.QuickCheck.Gen       Test/QuickCheck/Gen.hs:68:15-35                  3.2    1.2
randomIvalInteger  System.Random             System/Random.hs:(468,1)-(489,76)                2.3    2.5
primitive          Control.Monad.Primitive   Control/Monad/Primitive.hs:97:3-16               2.2    1.4
pprPrec            Language.C.Pretty         Language/C/Pretty.hs:(788,5)-(1009,48)           2.2    1.9
best.be.pragma     Text.PrettyPrint.Mainland Text/PrettyPrint/Mainland.hs:(625,9)-(626,33)    1.9    0.1
doVg               Test.Ssm.Build            test/lib/Test/Ssm/Build.hs:(88,1)-(98,72)        1.9    0.8
<>                 Text.PrettyPrint.Mainland Text/PrettyPrint/Mainland.hs:128:5-14            1.8    1.9
eval               LowInterpreter            edsl/LowInterpreter.hs:(575,1)-(601,49)          1.7    1.9
createBlock256     System.Random.TF.Gen      src/System/Random/TF/Gen.hs:(41,1)-(47,26)       1.4    2.1
mash               System.Random.TF.Gen      src/System/Random/TF/Gen.hs:(117,1)-(126,29)     1.3    0.8
sleep              Test.Hspec.Core.Clock     src/Test/Hspec/Core/Clock.hs:33:1-36             1.3    0.0
text               Text.PrettyPrint.Mainland Text/PrettyPrint/Mainland.hs:143:1-28            1.2    0.4
best.better        Text.PrettyPrint.Mainland Text/PrettyPrint/Mainland.hs:(629,5)-(630,42)    1.1    2.3
tfGenSplit         System.Random.TF.Gen      src/System/Random/TF/Gen.hs:(166,1)-(173,35)     1.1    2.2
pprLoc             Language.C.Pretty         Language/C/Pretty.hs:31:1-34                     0.8    1.3
best.updatePos     Text.PrettyPrint.Mainland Text/PrettyPrint/Mainland.hs:(643,5)-(645,41)    0.7    1.6
reportFileOnFail   Test.Ssm.Report           test/lib/Test/Ssm/Report.hs:(95,1)-(103,48)      0.6    1.2
mkTFGen            System.Random.TF.Gen      src/System/Random/TF/Gen.hs:(133,1)-(134,36)     0.5    2.1
randomIvalIntegral System.Random             System/Random.hs:462:1-71                        0.5    1.1
tfGenNext'         System.Random.TF.Gen      src/System/Random/TF/Gen.hs:(157,1)-(163,32)     0.3    1.5