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

compiler/testData/diagnostics/tests/controlFlowAnalysis/kt776.fir.kt

@@ -0,0 +1,38 @@
+//KT-776 Wrong detection of unreachable code
+
+package kt776
+
+fun test5() : Int {
+    var x = 0
+    while(true) {
+        try {
+            if(x < 10) {
+                x++
+                continue
+            }
+            else {
+                break
+            }
+        }
+        finally {
+            x++
+        }
+    }
+    return x
+}
+
+fun test1() : Int {
+    try {
+        if (true) {
+            return 1
+        }
+        else {
+            return 2
+        }
+    }
+    finally {
+        doSmth()  //unreachable
+    }
+}
+
+fun doSmth() {}