[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/generics/nullability/useAsReceiver.kt

@@ -21,7 +21,7 @@ fun <T : String?> foo(x: T) {
     x?.bar1()
     x?.bar2()
 
-    x<!NI;UNSAFE_CALL!>.<!><!OI;TYPE_INFERENCE_UPPER_BOUND_VIOLATED!>bar3<!>()
+    x<!UNSAFE_CALL{NI}!>.<!><!TYPE_INFERENCE_UPPER_BOUND_VIOLATED{OI}!>bar3<!>()
 
-    x?.let { it<!OI;UNSAFE_CALL!>.<!>length }
+    x?.let { it<!UNSAFE_CALL{OI}!>.<!>length }
 }