Basic Java nullability warnings implemented

#KT-6723 In Progress

compiler/testData/diagnostics/tests/jdk-annotations/sql/Statement.kt

@@ -1,5 +1,5 @@
 fun executeQuery(statement: java.sql.Statement, cmd: String?) {
-  statement.executeQuery(cmd)
+  statement.executeQuery(<!NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS!>cmd<!>)
   statement.executeQuery(cmd!!) : java.sql.ResultSet
 }
 
@@ -8,6 +8,6 @@ fun executeQuery(statement: java.sql.PreparedStatement) {
 }
 
 fun executeUpdate(statement: java.sql.Statement, cmd: String?) {
-  statement.executeUpdate(cmd)
+  statement.executeUpdate(<!NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS!>cmd<!>)
   statement.executeUpdate(cmd!!)
 }