Implemented block instruction parsing

src/build/scan.go

@@ -192,12 +192,11 @@ func scanFile(path string, functions chan<- *Function) error {
 					return errors.New(errors.MissingBlockStart, file, tokens[i].Position)
 				}
 
-				i++
-
 				if blockLevel == 0 {
 					break
 				}
 
+				i++
 				continue
 			}
 
@@ -237,5 +236,6 @@ func scanFile(path string, functions chan<- *Function) error {
 		nameStart = -1
 		paramsStart = -1
 		bodyStart = -1
+		i++
 	}
 }