[CMake] Disable LLVM_INCLUDE_GO_TESTS by default

[MaskRay]

Summary

llvm/test/Bindings/Go is quite flaky in the past few months and nobody fixes it.

See

• https://lists.llvm.org/pipermail/llvm-dev/2021-December/154353.html "Suggestions on debugging pre-merge test failure that looks irrelevant."
• https://github.com/llvm/llvm-project/issues/53017

[rnk]

Thanks! I can't remember how long this failure has bothered me.

llvm/CMakeLists.txt

 
 if(LLVM_BUILD_EXAMPLES)
   add_definitions(-DBUILD_EXAMPLES)
 endif(LLVM_BUILD_EXAMPLES)
 
 option(LLVM_BUILD_TESTS
   "Build LLVM unit tests. If OFF, just generate build targets." OFF)
 option(LLVM_INCLUDE_TESTS "Generate build targets for the LLVM unit tests." ON)
-option(LLVM_INCLUDE_GO_TESTS "Include the Go bindings tests in test build targets." ON)
+option(LLVM_INCLUDE_GO_TESTS "Include the Go bindings tests in test build targets." OFF)
 
 option(LLVM_BUILD_BENCHMARKS "Add LLVM benchmark targets to the list of default
 targets. If OFF, benchmarks still could be built using Benchmarks target." OFF)
 option(LLVM_INCLUDE_BENCHMARKS "Generate benchmark targets. If OFF, benchmarks can't be built." ON)
 
 option (LLVM_BUILD_DOCS "Build the llvm documentation." OFF)
 option (LLVM_INCLUDE_DOCS "Generate build targets for llvm documentation." ON)
 option (LLVM_ENABLE_DOXYGEN "Use doxygen to generate llvm API documentation." OFF)