Utilize precompilable bigints

JuliaLang/julia#28296 (comment)

src/tableaus.jl

@@ -594,10 +594,10 @@ function SKenCarpTableau(T,T2)
   # bhat2 = -T(10771552573575//22201958757719)
   # bhat3 = T(9247589265047//10645013368117)
   # bhat4 = T(2193209047091//5459859503100)
-  btilde1 = T(parse(BigInt,"681815649026867975666107")//parse(BigInt,"25159934323302256049469295")) # bhat1-a41
-  btilde2 = T(parse(BigInt,"18411887981491912264464127")//parse(BigInt,"167175311446532472108584143")) # bhat2-a42
-  btilde3 = T(parse(BigInt,"-12719313754959329011138489")//parse(BigInt,"123410692144842870217698057")) # bhat3-a43
-  btilde4 = T(parse(BigInt,"-47289384293135913063989")//parse(BigInt,"1383962894467812063558225")) # bhat4-γ
+  btilde1 = T(681815649026867975666107//25159934323302256049469295) # bhat1-a41
+  btilde2 = T(18411887981491912264464127//167175311446532472108584143) # bhat2-a42
+  btilde3 = T(-12719313754959329011138489//123410692144842870217698057) # bhat3-a43
+  btilde4 = T(-47289384293135913063989//1383962894467812063558225) # bhat4-γ
   c3 = T2(3//5)
   c2 = 2γ
   θ = c3/c2
@@ -618,10 +618,10 @@ function SKenCarpTableau(T,T2)
   eb2 = T(-4482444167858//7529755066697 )
   eb3 = T(11266239266428//11593286722821)
   eb4 = T(1767732205903//4055673282236)
-  ebtilde1 = T(parse(BigInt,"681815649026867975666107")//parse(BigInt,"25159934323302256049469295"))
-  ebtilde2 = T(parse(BigInt,"18411887981491912264464127")//parse(BigInt,"167175311446532472108584143"))
-  ebtilde3 = -T(parse(BigInt,"12719313754959329011138489")//parse(BigInt,"123410692144842870217698057"))
-  ebtilde4 = -T(parse(BigInt,"47289384293135913063989")//parse(BigInt,"1383962894467812063558225"))
+  ebtilde1 = T(681815649026867975666107//25159934323302256049469295)
+  ebtilde2 = T(18411887981491912264464127//167175311446532472108584143)
+  ebtilde3 = -T(12719313754959329011138489//123410692144842870217698057)
+  ebtilde4 = -T(47289384293135913063989//1383962894467812063558225)
 
   # Noise Tableau