Fix SemanticdbTests metac test

Author: dwijnand

compiler/test/dotty/tools/dotc/semanticdb/SemanticdbTests.scala

@@ -102,7 +102,7 @@ class SemanticdbTests:
       |inspect with:
       |  diff $expect ${expect.resolveSibling("" + expect.getFileName + ".out")}
       |Or else update all expect files with
-      |  sbt 'scala3-compiler-bootstrapped/test:runMain dotty.tools.dotc.semanticdb.updateExpect'""".stripMargin)
+      |  sbt 'scala3-compiler-bootstrapped/Test/runMain dotty.tools.dotc.semanticdb.updateExpect'""".stripMargin)
     Files.walk(target).sorted(Comparator.reverseOrder).forEach(Files.delete)
     if errors.nonEmpty then
       fail(s"${errors.size} errors in expect test.")

tests/semanticdb/metac.expect

@@ -1094,7 +1094,7 @@ Language => Scala
 Symbols => 181 entries
 Occurrences => 159 entries
 Diagnostics => 1 entries
-Synthetics => 5 entries
+Synthetics => 6 entries
 
 Symbols:
 _empty_/Enums. => final object Enums extends Object { self: Enums.type => +30 decls }
@@ -1277,7 +1277,7 @@ _empty_/Enums.unwrap().(ev) => implicit given param ev: <:<[A, Option[B]]
 _empty_/Enums.unwrap().(opt) => param opt: Option[A]
 _empty_/Enums.unwrap().[A] => typeparam A 
 _empty_/Enums.unwrap().[B] => typeparam B 
-local0 => param x: A
+local0 => param x: Option[B]
 
 Occurrences:
 [0:7..0:12): Enums <- _empty_/Enums.
@@ -1445,6 +1445,7 @@ Diagnostics:
 
 Synthetics:
 [52:9..52:13):Refl => *.unapply[Option[B]]
+[52:31..52:50):identity[Option[B]] => *[Function1[A, Option[B]]]
 [54:14..54:18):Some => *.apply[Some[Int]]
 [54:14..54:34):Some(Some(1)).unwrap => *(given_<:<_T_T[Option[Int]])
 [54:19..54:23):Some => *.apply[Int]