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

compiler/testData/diagnostics/tests/smartCasts/loops/whileWithAssertInConditionAndBreakAfter.fir.kt

@@ -0,0 +1,23 @@
+// !LANGUAGE: +SoundSmartcastFromLoopConditionForLoopAssignedVariables
+
+fun foo() {
+    var x: String? = "123"
+    while (x!!.length < 42) {
+        x = null
+        break
+
+    }
+    // TODO: this testdata fixates undesired behavior (it should be an unsafe call)
+    x.<!UNRESOLVED_REFERENCE!>length<!> // 'x' is unsoundly smartcasted here
+}
+
+fun bar() {
+    var x: List<Int>? = ArrayList<Int>(1)
+    for (i in x!!) {
+        x = null
+        break
+
+    }
+    // TODO: this testdata fixates undesired behavior (it should be an unsafe call)
+    x.<!UNRESOLVED_REFERENCE!>size<!> // 'x' is unsoundly smartcasted here
+}