[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/j+k/capturedFlexible.fir.txt

@@ -0,0 +1,4 @@
+FILE: capturedFlexible.kt
+    public final fun foo(z: R|java/util/zip/ZipFile|): R|kotlin/Unit| {
+        R|<local>/z|.R|java/util/zip/ZipFile.entries|().R|kotlin/sequences/asSequence|<R|ft<@FlexibleNullability java/util/zip/ZipEntry, java/util/zip/ZipEntry?>!|>()
+    }