do not need parenthesis for associative operations (IDEADEV-41569); move to java-tests

java/java-tests/testData/refactoring/introduceVariable/genericWithTwoParameters/before/Client.java

@@ -0,0 +1,5 @@
+class Client {
+    void method() {
+        <selection>PairProvider.getPair()</selection>
+    }
+}

java/java-tests/testData/refactoring/introduceVariable/genericWithTwoParameters/before/PairProvider.java

@@ -0,0 +1,7 @@
+import util.Pair;
+
+class PairProvider {
+    public static Pair<String, Pair<Integer, Boolean>> getPair() {
+        return null;
+    }
+}

java/java-tests/testData/refactoring/introduceVariable/genericWithTwoParameters/before/util/Pair.java

@@ -0,0 +1,13 @@
+package util;
+
+class Pair<L,R> {
+    public Pair(L l, R r) {
+
+    }
+    public L getL() {
+        return null;
+    }
+    public R getR() {
+        return null;
+    }
+}