Don’t require a newline after a type mismatch error reported by the compiler (#1165)

Currently, the compiler incorrectly reports errors like:

~~~ text
[error]  val n: Int = 0;  val s: Int = n + "hello"
[error]                               ^
[error]  Found:    String
[error]  Required: Int
[error]
[error]  One of the following imports might make progress towards fixing the problem:
[error]
[error]    import org.specs2.io.FileName.ToFileName
[error]    import org.specs2.TimeoutSpecExample.asExecutionIsInterpolated
[error]    import org.specs2.reflect.FromObjectName.asExecutionIsInterpolated
[error]    import org.specs2.reporter.reporterSpecSupport.asExecutionIsInterpolated
[error]    import org.specs2.runner.RunnerSpecification.asExecutionIsInterpolated
[error]    import org.specs2.specification.S1.asExecutionIsInterpolated
[error]    import org.specs2.specification.S2.asExecutionIsInterpolated
[error]    import org.specs2.specification.dsl1.asExecutionIsInterpolated
[error]    import org.specs2.TimeoutSpecExample.asResultIsInterpolated
[error]    import org.specs2.reflect.FromObjectName.asResultIsInterpolated
~~~

But after scala/scala3#17924 is merged, the import suggestions will be removed from the output.

We adjust the test specification in TypecheckSpec to pass both with the current compiler and with the fix in the linked PR.

Author: julienrf

core/shared/src/test/scala/org/specs2/matcher/TypecheckSpec.scala

@@ -34,8 +34,7 @@ class TypecheckSpec extends Specification:
     result must beFailing(startWith("""|val n: Int = 0;  val s: Int = n + "hello"
                                        |                             ^
                                        |Found:    String
-                                       |Required: Int
-                                       |""".stripMargin))
+                                       |Required: Int""".stripMargin))
 
   def e3 =
     def code1 = """val n: Int = "x";  """
@@ -47,15 +46,13 @@ class TypecheckSpec extends Specification:
     result must beFailing(startWith("""|val n: Int = "x";  val s: Int = "y"
                                        |            ^
                                        |Found:    ("x" : String)
-                                       |Required: Int
-                                       |""".stripMargin))
+                                       |Required: Int""".stripMargin))
 
     result match
       case Failure(_, _, _, FailureDetailsMessages(messages)) =>
         messages(0) must startWith("""|val n: Int = "x";  val s: Int = "y"
                                       |                               ^
                                       |Found:    ("y" : String)
-                                      |Required: Int
-                                      |""".stripMargin)
+                                      |Required: Int""".stripMargin)
       case other =>
         failure(s"unexpected $other")