fixed synthetic params

src/org/jetbrains/java/decompiler/modules/decompiler/exps/ExprUtil.java

@@ -1,3 +1,6 @@
+/*
+ * Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+ */
 package org.jetbrains.java.decompiler.modules.decompiler.exps;
 
 import org.jetbrains.java.decompiler.code.CodeConstants;
@@ -24,7 +27,7 @@ public class ExprUtil {
       // own class
       mask = wrapper.getMethodWrapper(CodeConstants.INIT_NAME, descriptor).synthParameters;
     }
-    else if (parameters > 0 && node.type == ClassNode.CLASS_MEMBER && node.classStruct.hasModifier(CodeConstants.ACC_STATIC)) {
+    else if (parameters > 0 && node.type == ClassNode.CLASS_MEMBER && (node.access & CodeConstants.ACC_STATIC) == 0) {
       // non-static member class
       mask = new ArrayList<>(Collections.nCopies(parameters, null));
       mask.set(0, new VarVersionPair(-1, 0));

test/org/jetbrains/java/decompiler/SingleClassesTest.java

@@ -105,6 +105,7 @@ public class SingleClassesTest {
   @Test public void testPop2OneLongPop2() { doTest("pkg/TestPop2OneLongPop2"); }
   @Test public void testPop2TwoIntPop2() { doTest("pkg/TestPop2TwoIntPop2"); }
   @Test public void testPop2TwoIntTwoPop() { doTest("pkg/TestPop2TwoIntTwoPop"); }
+  @Test public void testSuperInner2() { doTest("pkg/TestSuperInner2", "pkg/TestSuperInner"); }
 
   // TODO: fix all below
   //@Test public void testPackageInfo() { doTest("pkg/package-info"); }

testData/results/TestSuperInner2.dec

@@ -0,0 +1,17 @@
+class TestSuperInner2 extends TestSuperInner {
+   protected class Inner2 extends TestSuperInner.Inner {
+      protected Inner2() {
+         super();// 2
+      }
+   }
+}
+
+class 'TestSuperInner2$Inner2' {
+   method '<init> (LTestSuperInner2;)V' {
+      7      3
+      a      4
+   }
+}
+
+Lines mapping:
+2 <-> 4

testData/src/pkg/TestSuperInner.java

@@ -0,0 +1,6 @@
+public class TestSuperInner {
+  protected abstract class Inner {
+    protected Inner() {
+    }
+  }
+}

testData/src/pkg/TestSuperInner2.java

@@ -0,0 +1,4 @@
+class TestSuperInner2 extends TestSuperInner {
+  protected class Inner2 extends Inner {
+  }
+}