Keep line breaks works for Polyadic expressions (IDEA-153329)

java/java-impl/src/com/intellij/psi/formatter/java/JavaSpacePropertyProcessor.java

@@ -1463,10 +1463,6 @@ public class JavaSpacePropertyProcessor extends JavaElementVisitor {
       if (!space && !canStickChildrenTogether(myChild1, myChild2)) {
         space = true;
       }
-
-      if (!keepLineBreaks && myRole2 == ChildRoleBase.NONE) {
-        keepLineBreaks = true;
-      }
       myResult = Spacing.createSpacing(space ? 1 : 0, space ? 1 : 0, 0, keepLineBreaks, keepBlankLines);
     }
   }

java/java-tests/testSrc/com/intellij/psi/formatter/java/JavaFormatterSpaceTest.java

@@ -644,4 +644,13 @@ public class JavaFormatterSpaceTest extends AbstractJavaFormatterTest {
     );
   }
   
+  public void testKeepLineBreaksWorks_InsidePolyExpression() {
+    getSettings().KEEP_LINE_BREAKS = false;
+    doMethodTest(
+      "int x = (1 + 2 + 3) *\n" +
+      "        (1 + 2 + 2) * (1 + 2);",
+      "int x = (1 + 2 + 3) * (1 + 2 + 2) * (1 + 2);"
+    );
+  }
+  
 }