Convert parameter <-> receiver intention: do not add label to 'this' if not needed

#KT-17615 Fixed
#KT-30028 Fixed
#KT-32809 Fixed
#KT-28085 Fixed
#KT-37508 Fixed

Convert receiver to parameter:

#KT-37508 Fixed

idea/testData/intentions/convertParameterToReceiver/explicitThis.kt

@@ -0,0 +1,8 @@
+class A
+
+class B {
+    val foo = 1
+    fun test(<caret>a: A) {
+        this.foo
+    }
+}

idea/testData/intentions/convertParameterToReceiver/explicitThis.kt.after

@@ -0,0 +1,8 @@
+class A
+
+class B {
+    val foo = 1
+    fun A.test() {
+        this@B.foo
+    }
+}

idea/testData/intentions/convertParameterToReceiver/explicitThisForAnonymousObject.kt

@@ -0,0 +1,8 @@
+// WITH_RUNTIME
+fun foo(<caret>p: Any) {
+    object : Runnable {
+        override fun run() {
+            print(this)
+        }
+    }
+}

idea/testData/intentions/convertParameterToReceiver/explicitThisForAnonymousObject.kt.after

@@ -0,0 +1,8 @@
+// WITH_RUNTIME
+fun Any.foo() {
+    object : Runnable {
+        override fun run() {
+            print(this)
+        }
+    }
+}

idea/testData/intentions/convertParameterToReceiver/explicitThisForExtension.kt

@@ -0,0 +1,17 @@
+// WITH_RUNTIME
+class C(val x: Int, val y: Int, var z: Int)
+
+class CBuilder {
+    var x: Int = 0
+    var y: Int = 0
+    fun build() = C(x, y, 0)
+}
+
+fun test(<caret>a: C) =
+    CBuilder().apply {
+        x = a.x
+        y = a.y
+    }.build().apply {
+        val b = this
+        z = b.x + b.y
+    }

idea/testData/intentions/convertParameterToReceiver/explicitThisForExtension.kt.after

@@ -0,0 +1,17 @@
+// WITH_RUNTIME
+class C(val x: Int, val y: Int, var z: Int)
+
+class CBuilder {
+    var x: Int = 0
+    var y: Int = 0
+    fun build() = C(x, y, 0)
+}
+
+fun C.test() =
+    CBuilder().apply {
+        x = this@test.x
+        y = this@test.y
+    }.build().apply {
+        val b = this
+        z = b.x + b.y
+    }

idea/testData/intentions/convertParameterToReceiver/explicitThisForExtension2.kt

@@ -0,0 +1,10 @@
+interface I
+interface J
+
+fun foo(<caret>a: Any, b: String) {
+    b.bar {
+        this as J
+    }
+}
+
+fun String.bar(init: I.() -> Unit) {}

idea/testData/intentions/convertParameterToReceiver/explicitThisForExtension2.kt.after

@@ -0,0 +1,10 @@
+interface I
+interface J
+
+fun Any.foo(b: String) {
+    b.bar {
+        this as J
+    }
+}
+
+fun String.bar(init: I.() -> Unit) {}