Fix multiple 'unresolved java classifier' errors

Use the same component (NotFoundClasses) as in loading of compiled Kotlin
symbols.

Some tests were changed to avoid a diagnostic that is now reported when a
non-found class is encountered in a signature (e.g. staticMethod.1.java where
JDK seems to be not configured)

 #KT-10493 Fixed
 #KT-10820 Fixed
 #KT-11368 Fixed

compiler/frontend.java/src/org/jetbrains/kotlin/load/java/structure/impl/JavaClassifierTypeImpl.java

@@ -69,6 +69,12 @@ public class JavaClassifierTypeImpl extends JavaTypeImpl<PsiClassType> implement
         }
     }
 
+    @Override
+    @NotNull
+    public String getCanonicalText() {
+        return getPsi().getCanonicalText();
+    }
+
     @Override
     @NotNull
     public String getPresentableText() {