Finally fixed KT-8751

idea/idea-completion/testData/smartMultiFile/KT_8751_2/JavaClass.java

@@ -0,0 +1,6 @@
+class L<T> {}
+
+class JavaClass {
+    <T> void foo(L<T> l) {}
+}
+

idea/idea-completion/testData/smartMultiFile/KT_8751_2/KT_8751_2.kt

@@ -0,0 +1,8 @@
+class KotlinClass : JavaClass(){
+}
+
+fun foo(c: KotlinClass, l: L<String>) {
+    c.foo(<caret>)
+}
+
+// EXIST: l