Fix incorrect test data for wrong KotlinSignature CLI test

Classes from the root package cannot be referenced from a non-root package

compiler/testData/cli/jvm/wrongKotlinSignature.kt

@@ -1,4 +1,6 @@
 package test;
 
+import library.ClassWithWrongKotlinSignatures
+
 val x = ClassWithWrongKotlinSignatures.foo()
-val y = ClassWithWrongKotlinSignatures.bar()
+val y = ClassWithWrongKotlinSignatures.bar()

compiler/testData/cli/jvm/wrongKotlinSignature.out

@@ -1,7 +1,7 @@
 ERROR: The following Java entities have annotations with wrong Kotlin signatures:
-ClassWithWrongKotlinSignatures java.lang.String foo():
+library.ClassWithWrongKotlinSignatures java.lang.String foo():
     Function names mismatch, original: foo, alternative: bar
-ClassWithWrongKotlinSignatures java.lang.String bar():
+library.ClassWithWrongKotlinSignatures java.lang.String bar():
     Function names mismatch, original: bar, alternative: foo
 
 COMPILATION_ERROR

compiler/testData/cli/jvm/wrongKotlinSignatureLib/library/ClassWithWrongKotlinSignatures.java

@@ -1,3 +1,5 @@
+package library
+
 import jet.runtime.typeinfo.KotlinSignature;
 
 public class ClassWithWrongKotlinSignatures {