[TEST] Add implementation of new infrastructure services for compiler tests

All of new classes lays in lays in :compiler:tests-common-new module
  which includes classes for FE 1.0 and FIR diagnostics tests and
  JVM black boxtests

compiler/frontend/src/org/jetbrains/kotlin/checkers/utils/CheckerTestUtil.kt

@@ -149,7 +149,7 @@ object CheckerTestUtil {
         return diagnostics
     }
 
-    private fun getDebugInfoDiagnostics(
+    fun getDebugInfoDiagnostics(
         root: PsiElement,
         bindingContext: BindingContext,
         markDynamicCalls: Boolean,

compiler/frontend/src/org/jetbrains/kotlin/diagnostics/DiagnosticFactoryWithPsiElement.java

@@ -36,4 +36,8 @@ public abstract class DiagnosticFactoryWithPsiElement<E extends PsiElement, D ex
     protected boolean isValid(ParametrizedDiagnostic<E> diagnostic) {
         return positioningStrategy.isValid(diagnostic.getPsiElement());
     }
+
+    public PositioningStrategy<? super E> getPositioningStrategy() {
+        return positioningStrategy;
+    }
 }