Keep track of synthetic accessor parameter types

Accessor parameter types may be different from callee parameter types
in case of generic methods specialized by primitive types:

  open class Base<T> {
    protected fun foo(x: T) {}
  }

  // in different package
  class Derived : Base<Long> {
    inner class Inner {
      fun bar() { foo(42L) }
    }
  }

Synthetic accessor for 'Base.foo' in 'Derived' has signature '(J)V'
(not '(Ljava.lang.Object;)V' or '(Ljava.lang.Long;)V'),
and should box its parameter.

Note that in Java the corresponding synthetic accessor has signature
'(Ljava.lang.Long;)V' with auto-boxing at call site.

 #KT-20491 Fixed

js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java

@@ -22849,6 +22849,24 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
     @TestDataPath("$PROJECT_ROOT")
     @RunWith(JUnit3RunnerWithInners.class)
     public static class SyntheticAccessors extends AbstractJsCodegenBoxTest {
+        @TestMetadata("accessorForGenericConstructor.kt")
+        public void testAccessorForGenericConstructor() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/syntheticAccessors/accessorForGenericConstructor.kt");
+            doTest(fileName);
+        }
+
+        @TestMetadata("accessorForGenericMethod.kt")
+        public void testAccessorForGenericMethod() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/syntheticAccessors/accessorForGenericMethod.kt");
+            doTest(fileName);
+        }
+
+        @TestMetadata("accessorForGenericMethodWithDefaults.kt")
+        public void testAccessorForGenericMethodWithDefaults() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/syntheticAccessors/accessorForGenericMethodWithDefaults.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("accessorForProtected.kt")
         public void testAccessorForProtected() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/syntheticAccessors/accessorForProtected.kt");