Fix boundary test error line number

Author: natsukagami

tests/neg-custom-args/captures/boundary.check

@@ -17,8 +17,8 @@
    |--------------------------------------------------------------------------------------------------------------------
    |Inline stack trace
    |- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-   |This location contains code that was inlined from boundary.scala:70
-70 |    val local = Label[T]()
+   |This location contains code that was inlined from boundary.scala:73
+73 |    val local = Label[T]()
    |                ^^^^^^^^^^
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    |
@@ -42,8 +42,8 @@
    |--------------------------------------------------------------------------------------------------------------------
    |Inline stack trace
    |- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
-   |This location contains code that was inlined from boundary.scala:72
-72 |    catch case ex: Break[T] @unchecked =>
+   |This location contains code that was inlined from boundary.scala:75
+75 |    catch case ex: Break[T] @unchecked =>
    |                   ^
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    |