inline parameter: take advantages from inline local (IDEA-135610)

java/java-tests/testData/refactoring/inlineParameter/RightSideAssignment.java

@@ -0,0 +1,6 @@
+class Test {
+  String foo(String content) {
+    content = content.replace("a", "b");
+    return con<caret>tent;
+  }
+}

java/java-tests/testData/refactoring/inlineParameter/RightSideAssignment.java.after

@@ -0,0 +1,5 @@
+class Test {
+  String foo(String content) {
+      return content.replace("a", "b");
+  }
+}