[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/whenInference.fir.txt

@@ -0,0 +1,19 @@
+FILE: whenInference.kt
+    public final fun <T> materialize(): R|T| {
+        ^materialize throw R|java/lang/Exception.Exception|()
+    }
+    public abstract interface A : R|kotlin/Any| {
+    }
+    public final fun takeA(a: R|A|): R|kotlin/Unit| {
+    }
+    public final fun test(): R|kotlin/Unit| {
+        R|/takeA|(when () {
+            Boolean(true) ->  {
+                R|/materialize|<R|A|>()
+            }
+            else ->  {
+                R|/materialize|<R|A|>()
+            }
+        }
+        )
+    }