[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/inference/implicitInvokeExtensionWithFunctionalArgument.kt

@@ -25,5 +25,5 @@ fun test(s: SelectorFor<State>): Double {
     val e = s { return p1 }
     e checkType { _<AbstractSelector<State, Nothing>>() }
 
-    <!OI;UNREACHABLE_CODE!>return<!> null!!
-}
+    <!UNREACHABLE_CODE{OI}!>return<!> null!!
+}