Add quick-fix "Replace with safe call & elvis" #KT-17815 Fixed

idea/testData/quickfix/replaceWithSafeCall/assignment.kt

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

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

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

idea/testData/quickfix/replaceWithSafeCall/assignmentFromImplicitParameter.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
+    }
+}

idea/testData/quickfix/replaceWithSafeCall/assignmentFromImplicitParameter.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 ?: <caret>
+    }
+}

idea/testData/quickfix/replaceWithSafeCall/assignmentToNullable.kt

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

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

@@ -0,0 +1,7 @@
+// "Replace with safe (?.) call" "true"
+// WITH_RUNTIME
+var i: Int? = 0
+
+fun foo(s: String?) {
+    i = s?.length
+}

idea/testData/quickfix/replaceWithSafeCall/assignmentToProperty.kt

@@ -0,0 +1,5 @@
+// "Replace with safe (?.) call" "true"
+// WITH_RUNTIME
+class T(s: String?) {
+    var i: Int = s<caret>.length
+}

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

@@ -0,0 +1,5 @@
+// "Replace with safe (?.) call" "true"
+// WITH_RUNTIME
+class T(s: String?) {
+    var i: Int = s?.length ?: <caret>
+}

idea/testData/quickfix/replaceWithSafeCall/expression.kt

@@ -0,0 +1,5 @@
+// "Replace with safe (?.) call" "true"
+// WITH_RUNTIME
+fun foo(s: String?) {
+    1 + s<caret>.length
+}

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

@@ -0,0 +1,5 @@
+// "Replace with safe (?.) call" "true"
+// WITH_RUNTIME
+fun foo(s: String?) {
+    1 + (s?.length ?: <caret>)
+}