ui: show when type is built-in (issue #2)

* renamed DefinitionType to DefinitionKind
* passing DefinitionKind from Java to C++ instead of just a single bool
* omitting to create a symbol for undefined types

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src/lib/data/DefinitionKind.cpp

@@ -0,0 +1,20 @@
+#include "data/DefinitionKind.h"
+
+int definitionKindToInt(DefinitionKind definitionKind)
+{
+	return definitionKind;
+}
+
+DefinitionKind intToDefinitionKind(int definitionKind)
+{
+	switch (definitionKind)
+	{
+	case 0:
+		return DEFINITION_NONE;
+	case 1:
+		return DEFINITION_IMPLICIT;
+	case 2:
+		return DEFINITION_EXPLICIT;
+	}
+	return DEFINITION_NONE;
+}