[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/companionLoad.fir.txt

@@ -0,0 +1,4 @@
+FILE: companionLoad.kt
+    public final fun main(): R|kotlin/Unit| {
+        lval y: R|kotlin/Int| = Q|kotlin/Int|.R|kotlin/Int.Companion.MAX_VALUE|
+    }