Move tests to pos-macros

Author: nicolasstucki

tests/neg-macros/macros-in-same-project-1.check

@@ -0,0 +1,3 @@
+object Bar {
+  Foo.myMacro()
+}

tests/neg-macros/macros-in-same-project-1/Bar.scala

@@ -2,6 +2,6 @@ object Bar {
 
   inline def myMacro(): Unit = ${ Foo.aMacroImplementation }
 
-  myMacro() // error
+  myMacro()
 
 }