Add inspection to simplify successive null checks #KT-14799 Fixed

idea/testData/inspectionsLocal/nullChecksToSafeCall/function.kt

@@ -0,0 +1,7 @@
+class My {
+    fun foo(): String? = null
+}
+
+fun test(my: My?) {
+    if (<caret>my != null && my.foo() != null) {}
+}