mark wrapper methods that pass default values of parameters as synthetic

#KT-7314 Fixed

compiler/testData/compileJavaAgainstKotlin/method/DefaultMethod.java

@@ -1,8 +0,0 @@
-package test;
-
-class JavaClass {
-    public static void main(String[] args) {
-        TestPackage.foo$default(1, 0);
-    }
-
-}

compiler/testData/compileJavaAgainstKotlin/method/DefaultMethod.kt

@@ -1,3 +0,0 @@
-package test
-
-fun foo(a: Int = 1) {}

compiler/testData/compileJavaAgainstKotlin/method/throws/DefaultArgs.java

@@ -7,28 +7,18 @@ class JavaClass {
         }
         catch (E1 e) {}
 
-        try {
-            new One(1, 0, null);
-        }
-        catch (E1 e) {}
-
         try {
             new One();
         }
         catch (E1 e) {}
 
-        try {
-            One.one$default(instance, 1, 1);
-        }
-        catch (E1 e) {}
-
         try {
             TestPackage.one(1);
         }
         catch (E1 e) {}
 
         try {
-            TestPackage.one$default(1, 0);
+            TestPackage.one();
         }
         catch (E1 e) {}
     }

compiler/testData/compileJavaAgainstKotlin/method/throws/DefaultArgs.kt

@@ -2,7 +2,7 @@ package test
 
 class E1: Exception()
 
-throws(javaClass<E1>())
+throws(javaClass<E1>()) overloads
 fun one(a: Int = 1) {}
 
 class One [throws(javaClass<E1>())] (a: Int = 1) {