Handle unresolved break/continue expressions as error expressions.

compiler/testData/ir/irText/expressions/badBreakContinue.kt

@@ -0,0 +1,27 @@
+// !IGNORE_ERRORS
+
+fun test1() {
+    break
+    continue
+}
+
+fun test2() {
+    L1@ while (true) {
+        break@ERROR
+        continue@ERROR
+    }
+}
+
+fun test3() {
+    L1@ while (true) {
+        val lambda = {
+            break@L1
+            continue@L1
+        }
+    }
+}
+
+fun test4() {
+    while (break) {}
+    while (continue) {}
+}