Distinguish between public and private headers in jerry-core (#2472)

The patch also ensures that all components access only the public
headers of other components (except for unit tests, which are
allowed to use private headers, too).

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

jerry-ext/CMakeLists.txt

@@ -20,6 +20,8 @@ project (${JERRY_EXT_NAME} C)
 set(INCLUDE_EXT_PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/include")
 set(INCLUDE_EXT_PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/common")
 
+set(INCLUDE_EXT_PUBLIC ${INCLUDE_EXT_PUBLIC} PARENT_SCOPE) # for jerry-port
+
 if(FEATURE_INIT_FINI)
   set(DEFINES_EXT ${DEFINES_EXT} ENABLE_INIT_FINI)
 endif()