[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/regressions/kt557.kt

@@ -8,5 +8,5 @@ fun Array<String>.length() : Int {
 }
 
 fun test(array : Array<String?>?) {
-    <!OI;TYPE_MISMATCH!>array?.sure<Array<String?>>()<!>.<!NI;UNRESOLVED_REFERENCE_WRONG_RECEIVER!>length<!>()
+    <!TYPE_MISMATCH{OI}!>array?.sure<Array<String?>>()<!>.<!UNRESOLVED_REFERENCE_WRONG_RECEIVER{NI}!>length<!>()
 }