Correctly map declaration owner in JVM codegen

"context.contextKind()" was incorrect in
ExpressionCodegen.intermediateValueForProperty(), because it represents the
context of the call site, not the context of the property declaration

 #KT-4878 Fixed

compiler/testData/codegen/boxWithJava/property/fieldAccessFromExtensionInTraitImpl.java

@@ -0,0 +1,3 @@
+public class fieldAccessFromExtensionInTraitImpl {
+    public final String result = "OK";
+}