[WIP] Add BashExitCode tests

Author: mbovel

compiler/test/dotty/tools/scripting/BashExitCodeTests.scala

@@ -44,10 +44,16 @@ class BashExitCodeTests:
   @Test def runNeg = scala(f("@main def Test = prin", ".sc"))(1)
   @Test def runRun = scala(f("@main def Test = ???", ".sc"))(1)
   @Test def runPos = scala(f("@main def Test = ()", ".sc"))(0)
+  @Test def runPos2 = scala(f("@main def Foo = ()", ".sc"))(0)
+  @Test def runPos3 = scala(f("@main def test = ()", ".sc"))(0)
+  @Test def runPos4 = scala(f("object Test { def main(args: Array[String]) = () }", ".sc"))(0)
 
   @Test def scNeg = scalac("-script", f("@main def Test = prin", ".sc"))(1)
   @Test def scRun = scalac("-script", f("@main def Test = ???", ".sc"))(1)
   @Test def scPos = scalac("-script", f("@main def Test = ()", ".sc"))(0)
+  @Test def scPos2 = scalac("-script", f("@main def Foo = ()", ".sc"))(0)
+  @Test def scPos3 = scalac("-script", f("@main def test = ()", ".sc"))(0)
+  @Test def scPos4 =  scalac("-script", f("object Test { def main(args: Array[String]) = () }", ".sc"))(0)
 
   @Test def evalNeg = scala("-e", "'prinln(10*10)'")(1)
   @Test def evalRun = scala("-e", "'1/0'")(1)