KT-31295: Enable support for .ws.kts files as for scratch files

idea/testData/worksheet/multiFile/javaDepScriptRuntime/javaDepScriptRuntime.ws.comp.after

@@ -0,0 +1,5 @@
+// REPL_MODE: false
+
+import myTest.MyJavaClass
+
+MyJavaClass().test()         // RESULT: 1

idea/testData/worksheet/multiFile/javaDepScriptRuntime/javaDepScriptRuntime.ws.kts

@@ -0,0 +1,5 @@
+// REPL_MODE: ~REPL_MODE~
+
+import myTest.MyJavaClass
+
+MyJavaClass().test()

idea/testData/worksheet/multiFile/javaDepScriptRuntime/javaDepScriptRuntime.ws.repl.after

@@ -0,0 +1,5 @@
+// REPL_MODE: true
+
+import myTest.MyJavaClass
+
+MyJavaClass().test()         // RESULT: res1: kotlin.Int = 1

idea/testData/worksheet/multiFile/javaDepScriptRuntime/myTest/MyJavaClass.java

@@ -0,0 +1,7 @@
+package myTest;
+
+public class MyJavaClass {
+    public int test() {
+        return 1;
+    }
+}