[K/N] Don't cut cinterop exceptions from TC logs.

kotlin-native/Interop/StubGenerator/src/main/kotlin/org/jetbrains/kotlin/native/interop/gen/jvm/main.kt

@@ -85,6 +85,11 @@ class Interop {
             interop(flavor, args, internalInteropOptions, runFromDaemon)
         } catch (prettyException: CInteropPrettyException) {
             prettyException
+        } catch (throwable: Throwable) {
+            // Return Throwable to be printed to logs by invoker, instead of allowing unprettified exception to be thrown through reflection invocation,
+            // which otherwise will be replaced with InvocationTargetException with null error message and huge stacktrace which TeamCity cuts,
+            // so "Caused by:" part is not saved to the log.
+            throwable
         }
     }
 

native/native.tests/tests/org/jetbrains/kotlin/konan/test/blackbox/support/compilation/CompilationToolCall.kt

@@ -148,7 +148,7 @@ internal fun invokeCInterop(
         cinteropResult is Exception -> {
             CompilationToolCallResult(
                 exitCode = ExitCode.COMPILATION_ERROR,
-                toolOutput = cinteropResult.message ?: "",
+                toolOutput = cinteropResult.stackTraceToString(),
                 toolOutputHasErrors = true,
                 duration
             )