[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/cfg/initBlock.fir.txt

@@ -0,0 +1,23 @@
+FILE: initBlock.kt
+    public final class Foo : R|kotlin/Any| {
+        public constructor(): R|Foo| {
+            super<R|kotlin/Any|>()
+        }
+
+        init {
+            lval x: R|kotlin/Int| = Int(1)
+        }
+
+    }
+    public final class Bar : R|kotlin/Any| {
+        public constructor(): R|Bar| {
+            super<R|kotlin/Any|>()
+        }
+
+        init {
+            lval x: R|kotlin/Int| = Int(1)
+            throw R|java/lang/Exception.Exception|()
+            lval y: R|kotlin/Int| = Int(2)
+        }
+
+    }