Remove module integration-tests, merge into compiler-tests

compiler/testData/integration/smoke/compilationFailed/hello.compile.expected

@@ -0,0 +1,5 @@
+
+ERR:
+ERROR: hello.kt: (4, 5) Unresolved reference: a
+
+Return code: 1

compiler/testData/integration/smoke/compilationFailed/hello.kt

@@ -0,0 +1,5 @@
+package Hello
+
+fun main(args : Array<String>) {
+    a
+}