JS: fix translation of references to external nested classes in files marked with @JsModule. See KT-15797

compiler/testData/diagnostics/testsWithJsStdLib/module/nestedProhibited.kt

@@ -2,7 +2,9 @@
 package foo
 
 @JsModule("A")
-external class <!NESTED_JS_MODULE_PROHIBITED!>A<!>
+external class <!NESTED_JS_MODULE_PROHIBITED!>A<!> {
+    class Nested
+}
 
 @JsModule("B")
 external <!NESTED_JS_MODULE_PROHIBITED!>object B<!>

compiler/testData/diagnostics/testsWithJsStdLib/module/nestedProhibited.txt

@@ -10,6 +10,13 @@ package foo {
         public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
         public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
         public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+
+        public final class Nested {
+            public constructor Nested()
+            public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+            public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+            public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+        }
     }
 
     @kotlin.js.JsModule(import = "B") public external object B {

compiler/testData/diagnostics/testsWithJsStdLib/module/wrongCallToModule.kt

@@ -14,6 +14,8 @@ external object A {
 @JsModule("B")
 external open class B {
     fun foo(): Int
+
+    class Nested
 }
 
 @JsModule("bar")
@@ -37,6 +39,8 @@ fun box() {
     <!CALL_TO_JS_MODULE_WITHOUT_MODULE_SYSTEM!>B<!>()
     <!CALL_TO_JS_MODULE_WITHOUT_MODULE_SYSTEM!>bar<!>()
     <!CALL_TO_JS_MODULE_WITHOUT_MODULE_SYSTEM!>baz<!>()
+
+    B.<!CALL_TO_JS_MODULE_WITHOUT_MODULE_SYSTEM!>Nested<!>()
 }
 
 external class DerivedB : <!CALL_TO_JS_MODULE_WITHOUT_MODULE_SYSTEM!>B<!>

compiler/testData/diagnostics/testsWithJsStdLib/module/wrongCallToModule.txt

@@ -19,6 +19,13 @@ package foo {
         public final fun foo(): kotlin.Int
         public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
         public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+
+        public final class Nested {
+            public constructor Nested()
+            public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+            public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+            public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+        }
     }
 }
 

compiler/testData/diagnostics/testsWithJsStdLib/module/wrongCallToNonModule.kt

@@ -14,6 +14,8 @@ external object A {
 @JsNonModule
 external open class B {
     fun foo(): Int
+
+    class Nested
 }
 
 @JsNonModule
@@ -31,6 +33,7 @@ fun box() {
     A.<!CALL_TO_JS_NON_MODULE_WITH_MODULE_SYSTEM!>f<!>()+A.<!CALL_TO_JS_NON_MODULE_WITH_MODULE_SYSTEM!>g<!>
     <!CALL_TO_JS_NON_MODULE_WITH_MODULE_SYSTEM!>B<!>()
     <!CALL_TO_JS_NON_MODULE_WITH_MODULE_SYSTEM!>bar<!>()
+    B.<!CALL_TO_JS_NON_MODULE_WITH_MODULE_SYSTEM!>Nested<!>()
 }
 
 external class DerivedB : <!CALL_TO_JS_NON_MODULE_WITH_MODULE_SYSTEM!>B<!>

compiler/testData/diagnostics/testsWithJsStdLib/module/wrongCallToNonModule.txt

@@ -30,5 +30,12 @@ package foo {
         public final fun foo(): kotlin.Int
         public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
         public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+
+        public final class Nested {
+            public constructor Nested()
+            public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+            public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
+            public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+        }
     }
 }