Return true for boolean test on Serial

blue-2357 · blue-2357 · commit 52e1614bad1b · 2017-03-20T11:26:34.000+02:00
Fixes: espressif/arduino-esp32#270
diff --git a/cores/esp32/HardwareSerial.cpp b/cores/esp32/HardwareSerial.cpp
@@ -89,5 +89,5 @@ size_t HardwareSerial::write(const uint8_t *buffer, size_t size)
 
 HardwareSerial::operator bool() const
 {
-    return _uart != 0;
+    return true;
 }

Original file line number	Diff line number	Diff line change
`@@ -89,5 +89,5 @@ size_t HardwareSerial::write(const uint8_t *buffer, size_t size)`
`89`	`89`
`90`	`90`	`HardwareSerial::operator bool() const`
`91`	`91`	`{`
`92`		`- return _uart != 0;`
	`92`	`+ return true;`
`93`	`93`	`}`