Implemented runes

src/build/errors/CompileErrors.go

@@ -1,9 +1,11 @@
 package errors
 
 var (
-	InvalidStatement    = &Base{"Invalid statement"}
+	InvalidNumber       = &Base{"Invalid number"}
 	InvalidExpression   = &Base{"Invalid expression"}
-	MissingOperand      = &Base{"Missing operand"}
+	InvalidRune         = &Base{"Invalid rune"}
+	InvalidStatement    = &Base{"Invalid statement"}
 	MissingMainFunction = &Base{"Missing main function"}
+	MissingOperand      = &Base{"Missing operand"}
 	NotImplemented      = &Base{"Not implemented"}
 )