Add FIR test for KT-35565

compiler/fir/analysis-tests/testData/resolveWithStdlib/errorsInUnreachable.fir.txt

@@ -0,0 +1,16 @@
+FILE: errorsInUnreachable.kt
+    public final fun case(): R|kotlin/String| {
+        lval x0: R|kotlin/Boolean| = Boolean(false)
+        lval x1: R|kotlin/String|
+        lval x: R|kotlin/Boolean|
+        try {
+            R|<local>/x0| = throw R|java/lang/Exception.Exception|() || Boolean(true)
+            R|<local>/x|.R|kotlin/Boolean.not|()
+            lval a: R|kotlin/Int| = R|<local>/x1|.R|kotlin/text/toInt|()
+        }
+        catch (e: R|kotlin/Exception|) {
+            ^case String(OK)
+        }
+
+        ^case String(NOK)
+    }

compiler/fir/analysis-tests/testData/resolveWithStdlib/errorsInUnreachable.kt

@@ -0,0 +1,13 @@
+fun case(): String {
+    val x0 = false
+    val x1: String
+    val x: Boolean
+    try {
+        <!VAL_REASSIGNMENT!>x0<!> = (throw Exception()) || true  //VAL_REASSIGNMENT should be
+        !<!UNINITIALIZED_VARIABLE!>x<!> //ok, unreachable code   UNINITIALIZED_VARIABLE should be
+        val a: Int = <!UNINITIALIZED_VARIABLE!>x1<!>.toInt() //ok, unreachable code UNINITIALIZED_VARIABLE should be
+    } catch (e: Exception) {
+        return "OK"
+    }
+    return "NOK"
+}