[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/resolve/expresssions/syntheticInImplicitBody.fir.txt

@@ -0,0 +1,15 @@
+FILE: User.kt
+    public final class User : R|Owner| {
+        public constructor(): R|User| {
+            super<R|Owner|>()
+        }
+
+        public final fun foo(): R|kotlin/String| {
+            ^foo this@R|/User|.R|/User.text|
+        }
+
+        public final override fun getText(): R|kotlin/String| {
+            ^getText String()
+        }
+
+    }