[K/N][Tests] Migrate objcSmoke & objcTests tests

^KT-61259

native/native.tests/testData/interop/objc/tests/blocks.m

@@ -0,0 +1,20 @@
+#import "blocks.h"
+
+@implementation Blocks
++(BOOL)blockIsNull:(void (^)(void))block {
+    return block == nil;
+}
+
++(int (^)(int, int, int, int))same:(int (^)(int, int, int, int))block {
+    return block;
+}
+
++(void (^)(void)) nullBlock {
+    return nil;
+}
+
++(void (^)(void)) notNullBlock {
+    return ^{};
+}
+
+@end