KT-7135 Java to Kotlin converter should update usages in Java and Koltin code in the rest of the project

#KT-7135 Fixed

j2k/testData/multiFile/GetterAndSetterUsages/external/3.kt

@@ -0,0 +1,11 @@
+fun foo1(a: AAA) {
+    a.setX(a.getX() + 1)
+}
+
+fun foo2(a: AAA?) {
+    a?.setX((a?.getX() ?: 0) + 1)
+}
+
+fun AAA.foo() {
+    setX(getX() + 1)
+}

j2k/testData/multiFile/GetterAndSetterUsages/external/3.kt.expected

@@ -0,0 +1,11 @@
+fun foo1(a: AAA) {
+    a.x = a.x + 1
+}
+
+fun foo2(a: AAA?) {
+    a?.x = (a?.x ?: 0) + 1
+}
+
+fun AAA.foo() {
+    x = x + 1
+}

j2k/testData/multiFile/GetterAndSetterUsages/external/4.java

@@ -0,0 +1,3 @@
+void foo(AAA a) {
+    a.setX(a.getX() + 1)
+}

j2k/testData/multiFile/GetterAndSetterUsages/external/4.java.expected

@@ -0,0 +1,3 @@
+void foo(AAA a) {
+    a.setX(a.getX() + 1)
+}