[clang] [llvm] Disable compiling and testing Flang on Clang changes (PR #92740)

[Aaron Ballman via cfe-commits]

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@@ -68,7 +68,7 @@ function compute-projects-to-test() {
       done
     ;;
     clang)
-      for p in clang-tools-extra compiler-rt flang lldb cross-project-tests; do
+      for p in clang-tools-extra compiler-rt lldb cross-project-tests; do
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AaronBallman wrote:

Why would we need to? Flang depends on clangDriver (which depends on clangBasic), so the only time Flang tests need to run in response to Clang changes should be limited to changes to those two parts of the project. Otherwise, we're spending time (and money) testing Flang on changes that have no impact to their project (like changes to clangSema, etc).

https://github.com/llvm/llvm-project/pull/92740