Refactor OverrideImplementWithLibTest

Use JdkAndMockLibraryProjectDescriptor instead of a jar file, which needs to be
regenerated every time binary format changes

idea/testData/codeInsight/overrideImplement/withLib/fakeOverrideSrc/dependency.kt

@@ -0,0 +1,5 @@
+package dependency
+
+public open class A {
+    public open fun foo() {}
+}

idea/testData/codeInsight/overrideImplement/withLib/source.kt.txt

@@ -1,8 +0,0 @@
-package dependency
-
-// To regenerate this test, run CompileBinaryTestData.kt
-// Or manually, compile this file into jar
-
-public open class A {
-    public open fun foo() {}
-}