Scala.js: Complete the set of semantics to be made compliant.

This allows to run two more tests.

Author: sjrd

sjs-compiler-tests/test/scala/dotty/tools/dotc/ScalaJSLink.scala

@@ -17,6 +17,10 @@ object ScalaJSLink:
     Semantics.Defaults
       .withAsInstanceOfs(CheckedBehavior.Compliant)
       .withArrayIndexOutOfBounds(CheckedBehavior.Compliant)
+      .withArrayStores(CheckedBehavior.Compliant)
+      .withNegativeArraySizes(CheckedBehavior.Compliant)
+      .withNullPointers(CheckedBehavior.Compliant)
+      .withStringIndexOutOfBounds(CheckedBehavior.Compliant)
       .withModuleInit(CheckedBehavior.Compliant)
   end compliantSemantics
 

tests/run/exceptions-2.scala

@@ -1,4 +1,4 @@
-// scalajs: --skip
+// scalajs: --compliant-semantics
 
 /*
  * Try exception handling and finally blocks.

tests/run/exceptions-nest.scala

@@ -1,4 +1,4 @@
-// scalajs: --skip
+// scalajs: --compliant-semantics
 
 object Test extends App {
 
@@ -12,9 +12,12 @@ object Test extends App {
   try { println(test8) } catch { case _: Throwable => println("OK") }
   println(test9)
   println(test10)
-  println(test11)
+  portablePrintln(test11)
   println(test12)
 
+  def portablePrintln(x: Any): Unit =
+    println(if (x == ()) "()" else x)
+
   def test1 = {
     var x = 1
     try {