[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/resolveWithStdlib/backingField.fir.txt

@@ -0,0 +1,8 @@
+FILE: backingField.kt
+    public final var myProperty: R|kotlin/collections/List<kotlin/Int>| = R|kotlin/collections/listOf|<R|kotlin/Int|>(vararg(Int(1), Int(2), Int(3)))
+        public get(): R|kotlin/collections/List<kotlin/Int>| {
+            ^ F|/myProperty|.R|kotlin/collections/plus|<R|kotlin/Int|>(F|/myProperty|)
+        }
+        public set(param: R|kotlin/collections/List<kotlin/Int>|): R|kotlin/Unit| {
+            F|/myProperty| = R|<local>/param|
+        }