[TD] Update diagnostics test data due to new test runners

Update includes:
- Changing syntax of `OI/`NI` tags from `<!NI;TAG!>` to `<!TAG{NI}!>`
- Fix some incorrect directives
- Change order of diagnostics in some places
- Remove ignored diagnostics from FIR test data (previously `DIAGNOSTICS` didn't work)
- Update FIR dumps in some places and add `FIR_IDENTICAL` if needed
- Replace all JAVAC_SKIP with SKIP_JAVAC directive

compiler/testData/diagnostics/tests/ResolveToJava.fir.kt

@@ -1,9 +1,9 @@
 // !WITH_NEW_INFERENCE
 // !CHECK_TYPE
-// JAVAC_SKIP
+// SKIP_JAVAC
 // FULL_JDK
 
-// FILE: f.kt
+// FILE: a.kt
 
 import java.*
 import java.util.*
@@ -53,6 +53,6 @@ fun test(l : java.util.List<Int>) {
 }
 
 
-// FILE: f.kt
+// FILE: b.kt
 package xxx
-  import java.lang.Class;
+  import java.lang.Class;