ReplaceGuardClause inspection: do not remove 'else' branch

#KT-32797 Fixed

idea/testData/inspectionsLocal/replaceGuardClauseWithFunctionCall/require/hasElse3.kt

@@ -0,0 +1,11 @@
+// WITH_RUNTIME
+fun test(flag: Boolean, i: Int) {
+    <caret>if (!flag) {
+        throw IllegalArgumentException()
+    } else if (i == 0) {
+        println(0)
+    } else {
+        println(1)
+        println(2)
+    }
+}