Replace with safe call: do not add redundant elvis operator

#KT-34432 Fixed

idea/testData/quickfix/replaceInfixOrOperatorCall/hasElvis.kt

@@ -0,0 +1,7 @@
+// "Replace with safe (?.) call" "true"
+// WITH_RUNTIME
+
+fun foo(list: List<String>?) {
+    var s = ""
+    s = list[0]<caret> ?: ""
+}

idea/testData/quickfix/replaceInfixOrOperatorCall/hasElvis.kt.after

@@ -0,0 +1,7 @@
+// "Replace with safe (?.) call" "true"
+// WITH_RUNTIME
+
+fun foo(list: List<String>?) {
+    var s = ""
+    s = list?.get(0) ?: ""
+}

idea/testData/quickfix/replaceWithSafeCall/hasElvis.kt

@@ -0,0 +1,10 @@
+// "Replace with safe (?.) call" "true"
+// WITH_RUNTIME
+
+fun main() {
+    var a = foo()<caret>.length ?: 0
+}
+
+fun foo(): String? {
+    return ""
+}

idea/testData/quickfix/replaceWithSafeCall/hasElvis.kt.after

@@ -0,0 +1,10 @@
+// "Replace with safe (?.) call" "true"
+// WITH_RUNTIME
+
+fun main() {
+    var a = foo()?.length ?: 0
+}
+
+fun foo(): String? {
+    return ""
+}

idea/testData/quickfix/replaceWithSafeCall/hasElvis2.kt

@@ -0,0 +1,9 @@
+// "Replace with safe (this?.) call" "true"
+// WITH_RUNTIME
+var i = 0
+
+fun foo(a: String?) {
+    a.run {
+        i = <caret>length ?: 0
+    }
+}

idea/testData/quickfix/replaceWithSafeCall/hasElvis2.kt.after

@@ -0,0 +1,9 @@
+// "Replace with safe (this?.) call" "true"
+// WITH_RUNTIME
+var i = 0
+
+fun foo(a: String?) {
+    a.run {
+        i = this?.length ?: 0
+    }
+}