KT-1865 Calls with default argument values are generated incorrectly

#KT-1865 Fixed

js/js.tests/test/org/jetbrains/k2js/test/semantics/MiscTest.java

@@ -125,4 +125,8 @@ public final class MiscTest extends AbstractExpressionTest {
     public void testExtensionLiteralCalledInsideExtensionFunction() throws Exception {
         checkFooBoxIsTrue("extensionLiteralCalledInsideExtensionFunction.kt");
     }
+
+    public void testKt1865() throws Exception {
+        checkFooBoxIsTrue("KT-1865.kt");
+    }
 }

js/js.translator/src/org/jetbrains/k2js/translate/reference/AbstractCallExpressionTranslator.java

@@ -57,7 +57,7 @@ public abstract class AbstractCallExpressionTranslator extends AbstractTranslato
         this.expression = expression;
         this.resolvedCall = getResolvedCallForCallExpression(bindingContext(), expression);
         this.receiver = receiver;
-        callType = type;
+        this.callType = type;
     }
 
     abstract public boolean shouldWrapVarargInArray();

js/js.translator/src/org/jetbrains/k2js/translate/utils/BindingUtils.java

@@ -268,13 +268,23 @@ public final class BindingUtils {
     @NotNull
     public static JetExpression getDefaultArgument(@NotNull BindingContext context,
             @NotNull ValueParameterDescriptor parameterDescriptor) {
-        assert parameterDescriptor.hasDefaultValue() : "Unsupplied parameter must have default value.";
+        ValueParameterDescriptor descriptorWhichDeclaresDefaultValue = getOriginalDescriptorWhichDeclaresDefaultValue(parameterDescriptor);
-        JetParameter psiParameter = getParameterForDescriptor(context, parameterDescriptor);
+        JetParameter psiParameter = getParameterForDescriptor(context, descriptorWhichDeclaresDefaultValue);
         JetExpression defaultValue = psiParameter.getDefaultValue();
         assert defaultValue != null : "No default value found in PSI.";
         return defaultValue;
     }
 
+    private static ValueParameterDescriptor getOriginalDescriptorWhichDeclaresDefaultValue(
+            @NotNull ValueParameterDescriptor parameterDescriptor) {
+        ValueParameterDescriptor result = parameterDescriptor;
+        assert result.hasDefaultValue() : "Unsupplied parameter must have default value.";
+        while (!result.declaresDefaultValue()) {
+            result = result.getOverriddenDescriptors().iterator().next();
+        }
+        return result;
+    }
+
     @NotNull
     public static FunctionDescriptor getIteratorFunction(@NotNull BindingContext context,
             @NotNull JetExpression rangeExpression) {

js/js.translator/testFiles/expression/misc/cases/KT-1865.kt

@@ -0,0 +1,11 @@
+package foo
+
+open class A {
+  open fun foo(a : Int = 1) = a
+}
+
+class B : A() {
+  override fun foo(a : Int) = a + 1
+}
+
+fun box() = (B().foo() == 2)