added edge from try start to error through finally block

KT-2845 Wrong cf-analysys for variable initialization in try..finally
 #KT-2845 fixed
todo: some errors now are reported for several times (each time when analyzing finally block)

compiler/testData/diagnostics/tests/controlFlowAnalysis/kt2845.kt

@@ -0,0 +1,17 @@
+//KT-2845 Wrong cf-analysys for variable initialization in try..finally
+package h
+
+import java.util.ArrayList
+
+private fun doTest() : Int {
+    var list : MutableList<Int>? ;
+    try {
+        list = ArrayList()
+        list?.add(3)
+        return 0 ;
+    }
+    finally {
+        if(<!UNINITIALIZED_VARIABLE!>list<!> != null) { // Must be an ERROR
+        }
+    }
+}