use full path in site and origin strings

Author: lrytz

src/compiler/scala/tools/nsc/Reporting.scala

@@ -179,7 +179,14 @@ trait Reporting extends internal.Reporting { self: ast.Positions with Compilatio
       }
     }
 
-    private def siteName(s: Symbol) = if (s.exists) s.fullNameString else ""
+    private def siteName(sym: Symbol) = if (sym.exists) {
+      // Similar to fullNameString, but don't jump to enclosing class. Keep full chain of symbols.
+      def impl(s: Symbol): String =
+        if (s.isRootSymbol || s == NoSymbol) s.nameString
+        else if (s.owner.isEffectiveRoot) s.nameString
+        else impl(s.effectiveOwner) + "." + s.nameString
+      impl(sym)
+    } else ""
 
     def deprecationWarning(pos: Position, msg: String, since: String, site: String, origin: String): Unit =
       checkSuppressedAndIssue(Message.Deprecation(pos, msg, site, origin, Version.fromString(since)))

test/files/neg/nowarnPointPos.scala

@@ -86,3 +86,10 @@ trait T {
 }
 
 class K extends T
+
+@nowarn("site=Uh.f.g")
+class Uh {
+  def f = {
+    def g(c: C) = c.dep
+  }
+}

test/files/neg/nowarnRangePos.scala

@@ -86,3 +86,10 @@ trait T {
 }
 
 class K extends T
+
+@nowarn("site=Uh.f.g")
+class Uh {
+  def f = {
+    def g(c: C) = c.dep
+  }
+}