KT-1863 Wrong nullability for class derived from java classes.

#KT-1863 In progress

compiler/testData/diagnostics/tests/j+k/SupertypeArgumentsNullability-NotNull-SpecialTypes.jet

@@ -0,0 +1,23 @@
+// FILE: A.java
+public class A {}
+
+// FILE: X.java
+import org.jetbrains.annotations.NotNull;
+
+public class X<T> {
+    @NotNull T fooN() {return null;}
+    void barN(@NotNull T a) {}
+}
+
+// FILE: Y.java
+public class Y extends X<String> {
+
+}
+
+// FILE: test.kt
+
+fun main() {
+    Y().fooN() : Any
+    Y().barN(<!ERROR_COMPILE_TIME_VALUE!>null<!>);
+}
+

compiler/testData/diagnostics/tests/j+k/SupertypeArgumentsNullability-NotNull-UserTypes.jet

@@ -0,0 +1,23 @@
+// FILE: A.java
+public class A {}
+
+// FILE: X.java
+import org.jetbrains.annotations.NotNull;
+
+public class X<T> {
+    @NotNull T fooN() {return null;}
+    void barN(@NotNull T a) {}
+}
+
+// FILE: Y.java
+public class Y extends X<A> {
+
+}
+
+// FILE: test.kt
+
+fun main() {
+    Y().fooN() : Any
+    Y().barN(<!ERROR_COMPILE_TIME_VALUE!>null<!>);
+}
+

compiler/testData/diagnostics/tests/j+k/SupertypeArgumentsNullability-SpecialTypes.jet

@@ -0,0 +1,21 @@
+// FILE: A.java
+public class A {}
+
+// FILE: X.java
+public class X<T> {
+    T foo() {return null;}
+    void bar(T a) {}
+}
+
+// FILE: Y.java
+public class Y extends X<String> {
+
+}
+
+// FILE: test.kt
+
+fun main() {
+    Y().foo()<!UNSAFE_CALL!>.<!>length
+    Y().bar(null)
+}
+

compiler/testData/diagnostics/tests/j+k/SupertypeArgumentsNullability-UserTypes.jet

@@ -0,0 +1,21 @@
+// FILE: A.java
+public class A {}
+
+// FILE: X.java
+public class X<T> {
+    T foo() {return null;}
+    void bar(T a) {}
+}
+
+// FILE: Y.java
+public class Y extends X<A> {
+
+}
+
+// FILE: test.kt
+
+fun main() {
+    Y().foo()<!UNSAFE_CALL!>.<!>hashCode()
+    Y().bar(null)
+}
+