Added test case for import producing out of bounds

Author: MTDL9

src/test/kotlin/org/javacs/kt/CompletionsTest.kt

@@ -195,6 +195,13 @@ class ImportsTest: SingleFileTestFixture("completions", "Imports.kt") {
 
         assertThat(labels, hasItems("MethodHandle"))
     }
+
+    @Test fun `complete import from j`() {
+        val completions = languageServer.textDocumentService.completion(completionParams(file, 5, 9)).get().right!!
+        val labels = completions.items.map { it.label }
+
+        assertThat(labels, hasItems("java"))
+    }
 }
 
 class DoubleDotTest: SingleFileTestFixture("completions", "DoubleDot.kt") {
@@ -240,4 +247,4 @@ class EditCallTest: SingleFileTestFixture("completions", "EditCall.kt") {
         assertThat(labels, hasItem("println"))
         assertThat(completions.items.filter { it.label == "println" }.firstOrNull(), hasProperty("insertText", equalTo("println")))
     }
-}
+}

src/test/resources/completions/Imports.kt

@@ -1,3 +1,5 @@
 import java.nio.file.P
 // Import something else
-import java.lang.invoke.
+import java.lang.invoke.
+// Import base package
+import j