Add regression test

Closes #6991

Author: nicolasstucki

tests/neg-macros/i6991.check

@@ -0,0 +1,10 @@
+-- [E050] Type Error: tests/neg-macros/i6991.scala:11:14 ---------------------------------------------------------------
+11 |      case '{($x: Foo)($bar: String)} => '{"Hello World"} // error
+   |              ^^^^^^^
+   |              expression does not take parameters
+   |
+   | longer explanation available when compiling with `-explain`
+-- [E008] Not Found Error: tests/neg-macros/i6991.scala:12:23 ----------------------------------------------------------
+12 |      case '{($x: Foo).apply($bar: String)} => '{"Hello World"} // error
+   |             ^^^^^^^^^^^^^^^
+   |             value apply is not a member of macros.Foo

tests/neg-macros/i6991.scala

@@ -0,0 +1,16 @@
+import scala.quoted._
+
+object macros {
+  inline def mcr(x: => Any): Any = ${mcrImpl('x)}
+
+  class Foo // { def apply(str: String) = "100" }
+  class Bar { def apply(str: String) = "100" }
+
+  def mcrImpl(body: Expr[Any])(using ctx: Quotes): Expr[Any] = {
+    body match {
+      case '{($x: Foo)($bar: String)} => '{"Hello World"} // error
+      case '{($x: Foo).apply($bar: String)} => '{"Hello World"} // error
+      case '{($x: Bar)($bar: String)} => '{"Hello World"}
+    }
+  }
+}