[test] Exclude "K1-only" from FIR IR text tests and "K2-only" from Classic IR text tests

^KT-60390

native/native.tests/tests/org/jetbrains/kotlin/generators/tests/GenerateNativeTests.kt

@@ -71,13 +71,22 @@ fun main() {
                 model("codegen/boxInline", targetBackend = TargetBackend.NATIVE)
             }
             testClass<AbstractClassicNativeIrTextTest> {
-                model("ir/irText")
+                model(
+                    "ir/irText",
+                    excludeDirs = listOf("declarations/multiplatform/k2")
+                )
             }
             testClass<AbstractFirLightTreeNativeIrTextTest> {
-                model("ir/irText")
+                model(
+                    "ir/irText",
+                    excludeDirs = listOf("declarations/multiplatform/k1")
+                )
             }
             testClass<AbstractFirPsiNativeIrTextTest> {
-                model("ir/irText")
+                model(
+                    "ir/irText",
+                    excludeDirs = listOf("declarations/multiplatform/k1")
+                )
             }
         }