Tag experimental API tests

Add explicitly `-experimental -Yno-experimental` to tests that use
definitions that are `@experimental` in the standard library.
`-Yno-experimental` disables the experimental mode from nightly builds
and `-experimental` adds `@experimental` to all top-level definitions.

Author: nicolasstucki

tests/neg-macros/i18677-a.check

@@ -7,10 +7,10 @@
   |The tree does not conform to the compiler's tree invariants.
   |
   |Macro was:
-  |@scala.annotation.internal.SourceFile("tests/neg-macros/i18677-a/Test_2.scala") @extendFoo class AFoo()
+  |@scala.annotation.internal.SourceFile("tests/neg-macros/i18677-a/Test_2.scala") @scala.annotation.experimental @extendFoo class AFoo()
   |
   |The macro returned:
-  |@scala.annotation.internal.SourceFile("tests/neg-macros/i18677-a/Test_2.scala") @extendFoo class AFoo() extends Foo
+  |@scala.annotation.internal.SourceFile("tests/neg-macros/i18677-a/Test_2.scala") @scala.annotation.experimental @extendFoo class AFoo() extends Foo
   |
   |Error:
   |assertion failed: Parents of class symbol differs from the parents in the tree for class AFoo

tests/neg-macros/i18677-a/Macro_1.scala

@@ -1,4 +1,4 @@
-//> using -expermiental
+//> using options -experimental -Yno-experimental
 
 import annotation.MacroAnnotation
 import quoted.*

tests/neg-macros/i18677-a/Test_2.scala

@@ -1,4 +1,4 @@
-//> using -expermiental
+//> using options -experimental -Yno-experimental
 
 @extendFoo
 class AFoo // error

tests/neg-macros/i18677-b.check

@@ -7,10 +7,10 @@
   |The tree does not conform to the compiler's tree invariants.
   |
   |Macro was:
-  |@scala.annotation.internal.SourceFile("tests/neg-macros/i18677-b/Test_2.scala") @extendFoo class AFoo()
+  |@scala.annotation.internal.SourceFile("tests/neg-macros/i18677-b/Test_2.scala") @scala.annotation.experimental @extendFoo class AFoo()
   |
   |The macro returned:
-  |@scala.annotation.internal.SourceFile("tests/neg-macros/i18677-b/Test_2.scala") @extendFoo class AFoo() extends Foo
+  |@scala.annotation.internal.SourceFile("tests/neg-macros/i18677-b/Test_2.scala") @scala.annotation.experimental @extendFoo class AFoo() extends Foo
   |
   |Error:
   |assertion failed: Parents of class symbol differs from the parents in the tree for class AFoo

tests/neg-macros/i18677-b/Macro_1.scala

@@ -1,4 +1,4 @@
-//> using -expermiental
+//> using options -experimental -Yno-experimental
 
 import annotation.MacroAnnotation
 import quoted.*

tests/neg-macros/i18677-b/Test_2.scala

@@ -1,4 +1,4 @@
-//> using -expermiental
+//> using options -experimental -Yno-experimental
 
 @extendFoo
 class AFoo // error

tests/neg-macros/newClassExtendsNoParents/Macro_1.scala

@@ -1,3 +1,5 @@
+//> using options -experimental -Yno-experimental
+
 import scala.quoted.*
 
 inline def makeClass(inline name: String): Any = ${ makeClassExpr('name) }

tests/neg-macros/newClassExtendsNoParents/Test_2.scala

@@ -1 +1,3 @@
+//> using options -experimental -Yno-experimental
+
 def test: Any = makeClass("foo") // error

tests/neg-macros/newClassExtendsOnlyTrait/Macro_1.scala

@@ -1,3 +1,5 @@
+//> using options -experimental -Yno-experimental
+
 import scala.quoted.*
 
 inline def makeClass(inline name: String): Foo = ${ makeClassExpr('name) }

tests/neg-macros/newClassExtendsOnlyTrait/Test_2.scala

@@ -1 +1,3 @@
+//> using options -experimental -Yno-experimental
+
 def test: Foo = makeClass("foo") // error