[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/expresssions/when.fir.txt

@@ -0,0 +1,23 @@
+FILE: when.kt
+    public final fun foo(): R|kotlin/Int| {
+        ^foo when () {
+            Boolean(true) ->  {
+                Int(1)
+            }
+            else ->  {
+                Int(0)
+            }
+        }
+
+    }
+    public final fun bar(arg: R|kotlin/Any?|): R|kotlin/Int| {
+        ^bar when (R|<local>/arg|) {
+            ($subj$ is R|kotlin/Int|) ->  {
+                (R|<local>/arg| as R|kotlin/Int|)
+            }
+            else ->  {
+                Int(42)
+            }
+        }
+
+    }