[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/testData/diagnostics/tests/smartCasts/alwaysNullWithJava.kt

@@ -11,7 +11,7 @@ public class My {
 fun test() {
     val my = My.create()
     if (my == null) {
-        <!OI;DEBUG_INFO_CONSTANT!>my<!><!UNSAFE_CALL!>.<!>foo()
+        <!DEBUG_INFO_CONSTANT{OI}!>my<!><!UNSAFE_CALL!>.<!>foo()
     }
 }