[FIR-TEST] Add new testdata generated after changes in previous commit

compiler/testData/diagnostics/tests/when/CommaInWhenConditionWithoutArgument.fir.kt

@@ -0,0 +1,11 @@
+fun foo(x: Int, y: Int): Int =
+        when {
+            x > 0, y > 0,<!SYNTAX!>,<!> x < 0 -> 1
+            else -> 0
+        }
+
+fun bar(x: Int): Int =
+        when (x) {
+            0 -> 0
+            else -> 1
+        }