[IR] Be ready if message of CompilationException throw exception

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/CompilationException.kt

@@ -22,12 +22,18 @@ class CompilationException(
     cause: Throwable? = null
 ) : RuntimeException(message, cause) {
     override val message: String
-        get() = buildString {
+        get() = try {
+            buildString {
                 appendLine("Back-end: Please report this problem https://kotl.in/issue")
                 path?.let { appendLine("$it:$line:$column") }
                 content?.let { appendLine("Problem with `$it`") }
                 append("Details: " + super.message)
             }
+        } catch (e: Throwable) {
+            throw IllegalStateException("Problem with constructing exception message").also {
+                it.stackTrace = stackTrace
+            }
+        }
 
     val line: Int
         get() {