chore: migrate to lakefile.toml (#396)

With Lean 4.8 we now can use toml for the lakefile (which is the
preferred variant now), so this PR migrates our build to toml.

---------

Co-authored-by: Tobias Grosser <[email protected]>

docgen.sh

@@ -1,4 +1,4 @@
 set -o xtrace
 set -e
 lake -R exe cache get # load mathlib from cache
-lake -R -Kdoc=on build SSA:docs
+lake -R build SSA:docs

lakefile.toml

@@ -0,0 +1,41 @@
+name = "SSA"
+defaultTargets = ["SSA"]
+
+[[require]]
+name = "mathlib"
+git = "https://github.com/leanprover-community/mathlib4"
+rev = "nightly-testing-2024-07-05"
+
+[[require]]
+name = "Cli"
+git = "https://github.com/mhuisi/lean4-cli.git"
+rev = "nightly"
+
+[[require]]
+name = "doc-gen4"
+git = "https://github.com/leanprover/doc-gen4"
+rev = "main"
+
+[[lean_lib]]
+name = "SSA"
+
+[[lean_lib]]
+name = "AliveExamples"
+roots = ["SSA.Projects.InstCombine.AliveAutoGenerated"]
+
+[[lean_lib]]
+name = "AliveScaling"
+roots = ["SSA.Projects.InstCombine.ScalingTest"]
+
+[[lean_exe]]
+name = "mlirnatural"
+root = "SSA.MLIRNatural"
+
+[[lean_exe]]
+name = "opt"
+root = "SSA.Projects.InstCombine.LLVM.Opt"
+supportInterpreter = true
+
+[[lean_exe]]
+name = "ssaLLVMEnumerator"
+root = "SSA.Projects.InstCombine.LLVM.Enumerator"