Native: add tests for ExperimentalForeignApi on cinterop declarations

Add tests checking that all (top-level) declarations generated by
cinterop now have ExperimentalForeignApi annotation.

^KT-58362

native/native.tests/testData/CInterop/experimental/include/enum.h

@@ -0,0 +1,8 @@
+enum E1 {
+    ONE, TWO, THREE
+};
+
+enum E2 {
+    FOUR = 4,
+    EIGHT = 8
+};

native/native.tests/testData/CInterop/experimental/include/function.h

@@ -0,0 +1,2 @@
+void foo(void);
+void bar() {}

native/native.tests/testData/CInterop/experimental/include/global.h

@@ -0,0 +1,6 @@
+#define MACRO_CONST_GLOBAL 1
+
+int getValue(void);
+#define MACRO_GLOBAL getValue()
+
+extern int global;

native/native.tests/testData/CInterop/experimental/include/objccategory.h

@@ -0,0 +1,10 @@
+@interface MyClass
+@end
+
+@interface MyClass (MyClassCategory)
+-(instancetype) init;
+-(void) instanceMethod;
++(void) classMethod;
+@property int instanceProperty;
+@property (class) id classProperty;
+@end

native/native.tests/testData/CInterop/experimental/include/objcclass.h

@@ -0,0 +1,7 @@
+@interface MyClass
+-(instancetype) init;
+-(void) instanceMethod;
++(void) classMethod;
+@property int instanceProperty;
+@property (class) id classProperty;
+@end

native/native.tests/testData/CInterop/experimental/include/objcprotocol.h

@@ -0,0 +1,6 @@
+@protocol MyProtocol
+-(id) instanceMethod;
++(int) classMethod;
+@property id instanceProperty;
+@property (class) int classProperty;
+@end

native/native.tests/testData/CInterop/experimental/include/objctypedef.h

@@ -0,0 +1,6 @@
+@interface MyClass
+@end
+
+typedef MyClass MyClass2;
+typedef MyClass* MyClassRef;
+typedef id MyId;

native/native.tests/testData/CInterop/experimental/include/struct.h

@@ -0,0 +1,3 @@
+struct Foo {
+    int x;
+};

native/native.tests/testData/CInterop/experimental/include/typedef.h

@@ -0,0 +1,8 @@
+typedef int MyInt;
+typedef void* MyPointer;
+
+struct S;
+struct T {};
+
+typedef struct S MyS;
+typedef struct T MyT;