chore: do not Ycheck trees in scala2-library

[Cherry-picked ee8e798]

Author: hamzaremmal

project/Build.scala

@@ -1237,11 +1237,8 @@ object Build {
     withCommonSettings(Bootstrapped).
     dependsOn(dottyCompiler(Bootstrapped) % "provided; compile->runtime; test->test").
     settings(scala2LibraryBootstrappedSettings).
-    settings(
-      moduleName := "scala2-library-cc",
-      scalacOptions += "-Ycheck:all",
-    )
-
+    settings(moduleName := "scala2-library-cc")
+  
   lazy val scala2LibraryBootstrappedSettings = Seq(
       javaOptions := (`scala3-compiler-bootstrapped` / javaOptions).value,
       Compile / scalacOptions ++= {

project/scripts/scala2-library-tasty-mima.sh

@@ -18,6 +18,6 @@ setTastyVersion $MINOR_TASTY_VERSION_SUPPORTED_BY_TASTY_MIMA 0
 # We clean before to make sure all sources are recompiled using the new TASTY version.
 # We clean after to make sure no other test will use the TASTy generated with this version.
 # We set -Ycheck:all to check that -Ycompile-scala2-library does not gererate inconsistent trees.
-"$SBT" 'clean; scala2-library-bootstrapped/clean; reload; set `scala2-library-bootstrapped`/scalacOptions += "-Ycheck:all"; scala2-library-bootstrapped/tastyMiMaReportIssues; clean; scala2-library-bootstrapped/clean'
+"$SBT" 'clean; scala2-library-bootstrapped/clean; reload; scala2-library-bootstrapped/tastyMiMaReportIssues; clean; scala2-library-bootstrapped/clean'
 
 setTastyVersion $MINOR_TASTY_VERSION $EXPERIMENTAL_TASTY_VERSION