[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/numbers/characterIsNotANumber.kt

@@ -8,5 +8,5 @@ fun test() {
     foo(<!TYPE_MISMATCH!>c<!>)
 
     val d: Char? = 'd'
-    foo(<!NI;TYPE_MISMATCH!><!OI;TYPE_MISMATCH!>d<!>!!<!>)
+    foo(<!TYPE_MISMATCH{NI}!><!TYPE_MISMATCH{OI}!>d<!>!!<!>)
 }