DataFlowInspection: npe fixes fixed

Fixes duplicating NPE expression are disabled when expression has side-effect (not when it's a method call)
Parentheses added to generated code when necessary

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/surroundWithIf/afterTernary.java

@@ -0,0 +1,10 @@
+// "Surround with 'if ((b ? null : "foo") != null)'" "true"
+class A {
+    void bar(String s) {}
+
+    void foo(boolean b){
+        if ((b ? null : "foo") != null) {
+            bar(b ? null : "foo");
+        }
+    }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/surroundWithIf/beforeSideEffect.java

@@ -0,0 +1,8 @@
+// "Surround with 'if ((Math.random() > 0.5 ? null : "foo") != null)'" "false"
+class A {
+    void bar(String s) {}
+
+    void foo(boolean b){
+        bar(Math.random() > 0.5 ? null<caret> : "foo");
+    }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/surroundWithIf/beforeTernary.java

@@ -0,0 +1,8 @@
+// "Surround with 'if ((b ? null : "foo") != null)'" "true"
+class A {
+    void bar(String s) {}
+
+    void foo(boolean b){
+        bar(b ? null<caret> : "foo");
+    }
+}