[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/fir/analysis-tests/testData/resolve/invokeInWhenSubjectVariableInitializer.fir.txt

@@ -0,0 +1,4 @@
+FILE: invokeInWhenSubjectVariableInitializer.kt
+    public final fun test(func: R|() -> kotlin/String?|): R|kotlin/Unit| {
+        lval x: R|kotlin/String| = R|<local>/func|.R|SubstitutionOverride<kotlin/Function0.invoke: R|kotlin/String?|>|() ?: String()
+    }