Debugger: Fix AbstractPositionManagerTest

MockReferenceType can't be used anymore because the new DebuggerClassNameProvider requires much more from it.
The new SmartMockReferenceType implements methods such as nestedTypes() or allLineLocations() properly.

Also, as PositionManager can return more than one class, we should check if any of the classes it returned matches the pattern.

idea/testData/debugger/positionManager/JvmNameAnnotation.kt

@@ -2,5 +2,5 @@
 package a
 
 fun foo() {
-    ""   // a/ABC
+    ""   // a.ABC
 }

idea/testData/debugger/positionManager/anonymousNamedFunction.kt

@@ -2,6 +2,6 @@ package insertInBlock
 
 fun foo() {
     val lambda = {
-        val a = 1 // insertInBlock/AnonymousNamedFunctionKt\$foo\$lambda\$1
+        val a = 1 // insertInBlock.AnonymousNamedFunctionKt\$foo\$lambda\$1
     }()
 }

idea/testData/debugger/positionManager/extensionFunction.kt

@@ -4,5 +4,5 @@ class A {
 }
 
 fun A.foo() {
-    ""   // a/ExtensionFunctionKt
+    ""   // a.ExtensionFunctionKt
 }

idea/testData/debugger/positionManager/localFunction.kt

@@ -2,7 +2,7 @@ package test
 
 fun foo(): String {
     fun bar(): String {
-        return ""   // test/LocalFunctionKt\$foo\$1
+        return ""   // test.LocalFunctionKt\$foo\$1
     }
     return bar()
 }

idea/testData/debugger/positionManager/package.kt

@@ -1,5 +1,5 @@
 package test
 
 fun foo() {
-    ""   // test/PackageKt
+    ""   // test.PackageKt
 }

idea/testData/debugger/positionManager/topLevelPropertyInitializer.kt

@@ -1,3 +1,3 @@
 package prop
 
-val foo: Int = 5   // prop/TopLevelPropertyInitializerKt
+val foo: Int = 5   // prop.TopLevelPropertyInitializerKt

idea/testData/debugger/positionManager/twoClasses.kt

@@ -1,2 +1,4 @@
-class A { fun f() {} } // A
-class B { fun g() {} } // B
+package test
+
+class A { fun f() {} } // test.A
+class B { fun g() {} } // test.B