[JS IR] fix name clashes for imported external declarations

js/js.translator/testData/box/jsModule/externalClassNameClash.js

@@ -0,0 +1,29 @@
+define("a", [], function() {
+
+    function A() {}
+
+    A.prototype.foo = function () {
+        return "O";
+    };
+
+    return {
+        A: A,
+        bar: function() { return 1; },
+        prop: 10
+    };
+});
+
+define("b", [], function() {
+
+    function A() {}
+
+    A.prototype.foo = function () {
+        return "K";
+    };
+
+    return {
+        A: A,
+        bar: function() { return 2; },
+        prop: 20
+    };
+});

js/js.translator/testData/box/jsModule/externalClassNameClash.kt

@@ -0,0 +1,40 @@
+// EXPECTED_REACHABLE_NODES: 1284
+// FILE: a.kt
+// MODULE_KIND: AMD
+@file:JsModule("a")
+package a
+
+external class A {
+    fun foo(): String
+}
+
+external fun bar(): Int
+
+external val prop: Int
+
+// FILE: b.kt
+// MODULE_KIND: AMD
+@file:JsModule("b")
+package b
+
+external class A {
+    fun foo(): String
+}
+
+external fun bar(): Int
+
+external var prop: Int
+
+// FILE: main.kt
+
+import a.A as O
+import b.A as K
+
+fun box(): String {
+    if (a.bar() != 1) return "fail 1"
+    if (a.prop != 10) return "fail 2"
+    if (b.bar() != 2) return "fail 3"
+    if (b.prop != 20) return "fail 4"
+
+    return O().foo() + K().foo()
+}