Rename: Make improvements for "by-convention" calls

- Convert between conventions call for 'get' and 'invoke'
- Drop 'operator' when converting 'get'/'invoke' to something other than
  'invoke'/'get' respectively

 #KT-12365 Fixed

idea/testData/refactoring/rename/inplace/GetToFoo.kt

@@ -0,0 +1,7 @@
+class A {
+    operator fun <caret>get(n: Int, s: String) = 1
+}
+
+fun test() {
+    A()[1, "2"]
+}

idea/testData/refactoring/rename/inplace/GetToFoo.kt.after

@@ -0,0 +1,7 @@
+class A {
+    fun foo(n: Int, s: String) = 1
+}
+
+fun test() {
+    A().foo(1, "2")
+}

idea/testData/refactoring/rename/inplace/GetToInvoke.kt

@@ -0,0 +1,7 @@
+class A {
+    operator fun <caret>get(n: Int, s: String) = 1
+}
+
+fun test() {
+    A()[1, "2"]
+}

idea/testData/refactoring/rename/inplace/GetToInvoke.kt.after

@@ -0,0 +1,7 @@
+class A {
+    operator fun invoke(n: Int, s: String) = 1
+}
+
+fun test() {
+    A()(1, "2")
+}

idea/testData/refactoring/rename/inplace/GetToPlus.kt

@@ -0,0 +1,7 @@
+class A {
+    operator fun <caret>get(n: Int, s: String) = 1
+}
+
+fun test() {
+    A()[1, "2"]
+}

idea/testData/refactoring/rename/inplace/GetToPlus.kt.after

@@ -0,0 +1,7 @@
+class A {
+    fun plus(n: Int, s: String) = 1
+}
+
+fun test() {
+    A().plus(1, "2")
+}

idea/testData/refactoring/rename/inplace/InvokeToFoo.kt

@@ -0,0 +1,7 @@
+class A {
+    operator fun <caret>invoke(n: Int, s: String) = 1
+}
+
+fun test() {
+    A()(1, "2")
+}

idea/testData/refactoring/rename/inplace/InvokeToFoo.kt.after

@@ -0,0 +1,7 @@
+class A {
+    fun foo(n: Int, s: String) = 1
+}
+
+fun test() {
+    A().foo(1, "2")
+}

idea/testData/refactoring/rename/inplace/InvokeToGet.kt

@@ -0,0 +1,7 @@
+class A {
+    operator fun <caret>invoke(n: Int, s: String) = 1
+}
+
+fun test() {
+    A()(1, "2")
+}

idea/testData/refactoring/rename/inplace/InvokeToGet.kt.after

@@ -0,0 +1,7 @@
+class A {
+    operator fun get(n: Int, s: String) = 1
+}
+
+fun test() {
+    A()[1, "2"]
+}

idea/testData/refactoring/rename/inplace/InvokeToPlus.kt

@@ -0,0 +1,7 @@
+class A {
+    operator fun <caret>invoke(n: Int, s: String) = 1
+}
+
+fun test() {
+    A()(1, "2")
+}

idea/testData/refactoring/rename/inplace/InvokeToPlus.kt.after

@@ -0,0 +1,7 @@
+class A {
+    fun plus(n: Int, s: String) = 1
+}
+
+fun test() {
+    A().plus(1, "2")
+}