Send output to debugger client (#1955)

Sending the output to the debugger client, at the moment only the JS side prints are sent over.

JerryScript-DCO-1.0-Signed-off-by: Daniel Balla dballa@inf.u-szeged.hu

docs/07.DEBUGGER.md

@@ -26,9 +26,9 @@ can be used for transmitting debugger messages.
 
 The debugger client must be connected to the server before the
 JavaScript application runs. On-the-fly attachment is supported
-for more than one file, right after of engine initialization
-(this feature available with the python client). The debugging
-information (e.g. line index of each possible -breakpoint location)
+for more than one file, right after the engine initialization
+(this feature is available with the python client). The debugging
+information (e.g. line index of each possible breakpoint location)
 is not preserved by JerryScript. The client is expected to be run
 on a system with much more resources and it should be capable of
 storing this information. JerryScript frees all debug information
@@ -206,8 +206,8 @@ jerry_debugger_stop_at_breakpoint (bool enable_stop_at_breakpoint)
 
 **Summary**
 
-Stops the engine and puts that into a waiting loop. If the client send
-a source code and the JerryScript receive that, then the function will
+Stops the engine and puts it into a waiting loop. If the client sends
+a source code and JerryScript receives that, then the function will
 run the source with the initialized options, after that the engine will
 wait for a new source until the client send a close signal.
 
@@ -232,10 +232,34 @@ jerry_debugger_wait_and_run_client_source (jerry_value_t *return_value)
 
     if (receive_status == JERRY_DEBUGGER_SOURCE_RECEIVE_FAILED)
     {
-      // Handle the fail (e.g. create an error).
+      // Handle the failure (e.g. create an error).
     }
+  }
 
     jerry_release_value (run_result);
   }
   while (receive_status == JERRY_DEBUGGER_SOURCE_RECEIVED);
 ```
+
+### jerry_debugger_send_output
+
+**Summary**
+
+Sends the program's output to the debugger client.
+At the moment only the JS print size is implemented.
+
+**Prototype**
+
+```c
+  void
+  jerry_debugger_send_output (jerry_char_t buffer[], jerry_size_t string_size, uint8_t type)
+```
+
+**Example**
+
+```c
+  jerry_char_t my_output = "Hey, this should be sent too!";
+  jerry_size_t my_output_size = sizeof (my_output);
+
+  jerry_debugger_send_output (my_output, my_output_size, JERRY_DEBUGGER_OUTPUT_OK);
+```