[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/when/ExhaustiveBreakContinue.kt

@@ -22,4 +22,4 @@ fun foo(arr: Array<Color>): Color {
         <!UNREACHABLE_CODE!>return Color.BLUE<!>
     }
     return Color.GREEN
-}
+}