Fix missing SymbolOccurrence for aliased symbol

compiler/src/dotty/tools/dotc/semanticdb/ExtractSemanticDB.scala

@@ -320,7 +320,7 @@ class ExtractSemanticDB extends Phase:
         generated += occ
 
     private def registerUseGuarded(qualSym: Option[Symbol], sym: Symbol, span: Span, treeSource: SourceFile)(using Context) =
-      if !excludeUse(qualSym, sym) && namePresentInSource(sym, span, treeSource) then
+      if !excludeUse(qualSym, sym) && !span.isZeroExtent then
         registerUse(sym, span, treeSource)
 
     private def registerUse(sym: Symbol, span: Span, treeSource: SourceFile)(using Context): Unit =

tests/semanticdb/expect/Givens.expect.scala

@@ -4,11 +4,11 @@ package b
 object Givens/*<-a::b::Givens.*/:
 
   extension [A/*<-a::b::Givens.sayHello().[A]*/](any/*<-a::b::Givens.sayHello().(any)*/: A/*->a::b::Givens.sayHello().[A]*/)
-    def sayHello/*<-a::b::Givens.sayHello().*/ = s"Hello, I am $any/*->a::b::Givens.sayHello().(any)*/"
+    def sayHello/*<-a::b::Givens.sayHello().*/ = s"Hello, I am $any/*->a::b::Givens.sayHello().(any)*/"/*->scala::StringContext#s().*/
 
   extension [B/*<-a::b::Givens.sayGoodbye().[B]*//*<-a::b::Givens.saySoLong().[B]*/](any/*<-a::b::Givens.sayGoodbye().(any)*//*<-a::b::Givens.saySoLong().(any)*/: B/*->a::b::Givens.sayGoodbye().[B]*//*->a::b::Givens.saySoLong().[B]*/)
-    def sayGoodbye/*<-a::b::Givens.sayGoodbye().*/ = s"Goodbye, from $any/*->a::b::Givens.sayGoodbye().(any)*/"
-    def saySoLong/*<-a::b::Givens.saySoLong().*/ = s"So Long, from $any/*->a::b::Givens.saySoLong().(any)*/"
+    def sayGoodbye/*<-a::b::Givens.sayGoodbye().*/ = s"Goodbye, from $any/*->a::b::Givens.sayGoodbye().(any)*/"/*->scala::StringContext#s().*/
+    def saySoLong/*<-a::b::Givens.saySoLong().*/ = s"So Long, from $any/*->a::b::Givens.saySoLong().(any)*/"/*->scala::StringContext#s().*/
 
   val hello1/*<-a::b::Givens.hello1.*/ = 1.sayHello/*->a::b::Givens.sayHello().*/
   val goodbye1/*<-a::b::Givens.goodbye1.*/ = 1.sayGoodbye/*->a::b::Givens.sayGoodbye().*/

tests/semanticdb/expect/ImplicitConversion.expect.scala

@@ -21,10 +21,10 @@ class ImplicitConversion/*<-example::ImplicitConversion#*/ {
   val x/*<-example::ImplicitConversion#x.*/: Int/*->scala::Int#*/ = message/*->example::ImplicitConversion#message.*/
 
   // interpolators
-  s"Hello $message/*->example::ImplicitConversion#message.*/ $number/*->example::ImplicitConversion#number.*/"
+  s"Hello $message/*->example::ImplicitConversion#message.*/ $number/*->example::ImplicitConversion#number.*/"/*->scala::StringContext#s().*/
   s"""Hello
      |$message/*->example::ImplicitConversion#message.*/
-     |$number/*->example::ImplicitConversion#number.*/""".stripMargin/*->scala::collection::StringOps#stripMargin(+1).*/
+     |$number/*->example::ImplicitConversion#number.*/"""/*->scala::StringContext#s().*/.stripMargin/*->scala::collection::StringOps#stripMargin(+1).*/
 
   val a/*<-example::ImplicitConversion#a.*/: Int/*->scala::Int#*/ = char/*->example::ImplicitConversion#char.*/
   val b/*<-example::ImplicitConversion#b.*/: Long/*->scala::Long#*/ = char/*->example::ImplicitConversion#char.*/

tests/semanticdb/expect/Imports.expect.scala

@@ -1 +1,4 @@
 import scala.util.control.NonFatal/*->scala::util::control::NonFatal.*/
+import scala.collection.immutable.{HashMap/*->scala::collection::immutable::HashMap.*//*->scala::collection::immutable::HashMap#*/ as HM}
+
+val m/*<-_empty_::Imports$package.m.*/: HM/*->scala::collection::immutable::HashMap#*/[Int/*->scala::Int#*/, Int/*->scala::Int#*/] = HM/*->scala::collection::immutable::HashMap.*/[Int/*->scala::Int#*/, Int/*->scala::Int#*/]()

tests/semanticdb/expect/Imports.scala

@@ -1 +1,4 @@
 import scala.util.control.NonFatal
+import scala.collection.immutable.{HashMap as HM}
+
+val m: HM[Int, Int] = HM[Int, Int]()

tests/semanticdb/expect/Synthetic.expect.scala

@@ -30,7 +30,7 @@ class Synthetic/*<-example::Synthetic#*/ {
     null.asInstanceOf/*->scala::Any#asInstanceOf().*/[Int/*->scala::Int#*/ => Int/*->scala::Int#*/](2)
   }
 
-  class J/*<-example::Synthetic#J#*/[T/*<-example::Synthetic#J#[T]*//*<-example::Synthetic#J#evidence$1.*/: Manifest/*->scala::Predef.Manifest#*/] { val arr/*<-example::Synthetic#J#arr.*/ = Array/*->scala::Array.*/.empty/*->scala::Array.empty().*/[T/*->example::Synthetic#J#[T]*/]/*->example::Synthetic#J#evidence$1.*/ }
+  class J/*<-example::Synthetic#J#*/[T/*<-example::Synthetic#J#[T]*//*<-example::Synthetic#J#evidence$1.*/: Manifest/*->scala::Predef.Manifest#*/] { val arr/*<-example::Synthetic#J#arr.*/ = Array/*->scala::Array.*/.empty/*->scala::Array.empty().*/[T/*->example::Synthetic#J#[T]*/] }
 
   class F/*<-example::Synthetic#F#*/
   implicit val ordering/*<-example::Synthetic#ordering.*/: Ordering/*->scala::package.Ordering#*/[F/*->example::Synthetic#F#*/] = ???/*->scala::Predef.`???`().*/

tests/semanticdb/expect/Vals.expect.scala

@@ -47,5 +47,5 @@ object ValUsages/*<-example::ValUsages.*/ {
   println/*->scala::Predef.println(+1).*/(v/*->example::ValUsages.v.*/.xzm/*->example::Vals#xzm.*/)
   v/*->example::ValUsages.v.*/.yfm/*->example::Vals#`yfm_=`().*/ = v/*->example::ValUsages.v.*/.xfm/*->example::Vals#xfm.*/ +/*->scala::Int#`+`(+4).*/ v/*->example::ValUsages.v.*/.yfm/*->example::Vals#yfm().*/
   v/*->example::ValUsages.v.*/.yim/*->example::Vals#`yim_=`().*/ = v/*->example::ValUsages.v.*/.xim/*->example::Vals#xim.*/ +/*->scala::Int#`+`(+4).*/ v/*->example::ValUsages.v.*/.yim/*->example::Vals#yim().*/
-  v/*->example::ValUsages.v.*/.explicitSetter = 25
+  v/*->example::ValUsages.v.*/.explicitSetter/*->example::Vals#`explicitSetter_=`().*/ = 25
 }

tests/semanticdb/expect/toplevel.expect.scala

@@ -5,4 +5,4 @@ def combine/*<-_empty_::toplevel$package.combine(+2).*/ = 0
 def foo/*<-_empty_::toplevel$package.foo().*/ = "foo"
 @main/*->scala::main#*/ def MyProgram/*<-_empty_::toplevel$package.MyProgram().*/(times/*<-_empty_::toplevel$package.MyProgram().(times)*/: Int/*->scala::Int#*/): Unit/*->scala::Unit#*/ = (1 to/*->scala::runtime::RichInt#to().*/ times/*->_empty_::toplevel$package.MyProgram().(times)*/) foreach/*->scala::collection::immutable::Range#foreach().*/ (_ => println/*->scala::Predef.println(+1).*/("hello"))
 @main/*->scala::main#*/ def readInts/*<-_empty_::toplevel$package.readInts().*/(ints/*<-_empty_::toplevel$package.readInts().(ints)*/: Int/*->scala::Int#*/*): Unit/*->scala::Unit#*/ = println/*->scala::Predef.println(+1).*/(ints/*->_empty_::toplevel$package.readInts().(ints)*/.mkString/*->scala::collection::IterableOnceOps#mkString(+1).*/(","))
-def fooRef/*<-_empty_::toplevel$package.fooRef().*/ = toplevel$package.foo/*->_empty_::toplevel$package.foo().*/
+def fooRef/*<-_empty_::toplevel$package.fooRef().*/ = toplevel$package/*->_empty_::toplevel$package.*/.foo/*->_empty_::toplevel$package.foo().*/

tests/semanticdb/metac.expect

@@ -1408,7 +1408,7 @@ Uri => Givens.scala
 Text => empty
 Language => Scala
 Symbols => 29 entries
-Occurrences => 62 entries
+Occurrences => 65 entries
 
 Symbols:
 a/b/Givens. => final object Givens extends Object { self: Givens.type => +12 decls }
@@ -1450,6 +1450,7 @@ Occurrences:
 [5:21..5:22): A -> a/b/Givens.sayHello().[A]
 [6:8..6:16): sayHello <- a/b/Givens.sayHello().
 [6:34..6:37): any -> a/b/Givens.sayHello().(any)
+[6:37..6:38): " -> scala/StringContext#s().
 [8:13..8:14): B <- a/b/Givens.sayGoodbye().[B]
 [8:13..8:14): B <- a/b/Givens.saySoLong().[B]
 [8:16..8:19): any <- a/b/Givens.sayGoodbye().(any)
@@ -1458,8 +1459,10 @@ Occurrences:
 [8:21..8:22): B -> a/b/Givens.saySoLong().[B]
 [9:8..9:18): sayGoodbye <- a/b/Givens.sayGoodbye().
 [9:38..9:41): any -> a/b/Givens.sayGoodbye().(any)
+[9:41..9:42): " -> scala/StringContext#s().
 [10:8..10:17): saySoLong <- a/b/Givens.saySoLong().
 [10:37..10:40): any -> a/b/Givens.saySoLong().(any)
+[10:40..10:41): " -> scala/StringContext#s().
 [12:6..12:12): hello1 <- a/b/Givens.hello1.
 [12:17..12:25): sayHello -> a/b/Givens.sayHello().
 [13:6..13:14): goodbye1 <- a/b/Givens.goodbye1.
@@ -1514,7 +1517,7 @@ Uri => ImplicitConversion.scala
 Text => empty
 Language => Scala
 Symbols => 23 entries
-Occurrences => 48 entries
+Occurrences => 50 entries
 Synthetics => 6 entries
 
 Symbols:
@@ -1567,8 +1570,10 @@ Occurrences:
 [20:15..20:22): message -> example/ImplicitConversion#message.
 [23:11..23:18): message -> example/ImplicitConversion#message.
 [23:20..23:26): number -> example/ImplicitConversion#number.
+[23:26..23:27): " -> scala/StringContext#s().
 [25:7..25:14): message -> example/ImplicitConversion#message.
 [26:7..26:13): number -> example/ImplicitConversion#number.
+[26:15..26:16): " -> scala/StringContext#s().
 [26:17..26:28): stripMargin -> scala/collection/StringOps#stripMargin(+1).
 [28:6..28:7): a <- example/ImplicitConversion#a.
 [28:9..28:12): Int -> scala/Int#
@@ -1610,16 +1615,30 @@ Schema => SemanticDB v4
 Uri => Imports.scala
 Text => empty
 Language => Scala
-Symbols => 0 entries
-Occurrences => 4 entries
+Symbols => 2 entries
+Occurrences => 16 entries
 
 Symbols:
+_empty_/Imports$package. => final package object _empty_ extends Object { self: _empty_.type => +2 decls }
+_empty_/Imports$package.m. => val method m HashMap[Int, Int]
 
 Occurrences:
 [0:7..0:12): scala -> scala/
 [0:13..0:17): util -> scala/util/
 [0:18..0:25): control -> scala/util/control/
 [0:26..0:34): NonFatal -> scala/util/control/NonFatal.
+[1:7..1:12): scala -> scala/
+[1:13..1:23): collection -> scala/collection/
+[1:24..1:33): immutable -> scala/collection/immutable/
+[1:35..1:42): HashMap -> scala/collection/immutable/HashMap.
+[1:35..1:42): HashMap -> scala/collection/immutable/HashMap#
+[3:4..3:5): m <- _empty_/Imports$package.m.
+[3:7..3:9): HM -> scala/collection/immutable/HashMap#
+[3:10..3:13): Int -> scala/Int#
+[3:15..3:18): Int -> scala/Int#
+[3:22..3:24): HM -> scala/collection/immutable/HashMap.
+[3:25..3:28): Int -> scala/Int#
+[3:30..3:33): Int -> scala/Int#
 
 expect/InstrumentTyper.scala
 ----------------------------
@@ -2964,7 +2983,7 @@ Uri => Synthetic.scala
 Text => empty
 Language => Scala
 Symbols => 52 entries
-Occurrences => 133 entries
+Occurrences => 132 entries
 Synthetics => 21 entries
 
 Symbols:
@@ -3093,7 +3112,6 @@ Occurrences:
 [32:35..32:40): Array -> scala/Array.
 [32:41..32:46): empty -> scala/Array.empty().
 [32:47..32:48): T -> example/Synthetic#J#[T]
-[32:49..32:49): -> example/Synthetic#J#evidence$1.
 [34:8..34:9): F <- example/Synthetic#F#
 [35:15..35:23): ordering <- example/Synthetic#ordering.
 [35:25..35:33): Ordering -> scala/package.Ordering#
@@ -3311,7 +3329,7 @@ Uri => Vals.scala
 Text => empty
 Language => Scala
 Symbols => 42 entries
-Occurrences => 127 entries
+Occurrences => 128 entries
 
 Symbols:
 example/ValUsages. => final object ValUsages extends Object { self: ValUsages.type => +2 decls }
@@ -3485,6 +3503,7 @@ Occurrences:
 [48:18..48:19): v -> example/ValUsages.v.
 [48:20..48:23): yim -> example/Vals#yim().
 [49:2..49:3): v -> example/ValUsages.v.
+[49:3..49:18): .explicitSetter -> example/Vals#`explicitSetter_=`().
 
 expect/Vararg.scala
 -------------------
@@ -4609,7 +4628,7 @@ Uri => toplevel.scala
 Text => empty
 Language => Scala
 Symbols => 18 entries
-Occurrences => 42 entries
+Occurrences => 43 entries
 Synthetics => 1 entries
 
 Symbols:
@@ -4674,6 +4693,7 @@ Occurrences:
 [6:47..6:51): ints -> _empty_/toplevel$package.readInts().(ints)
 [6:52..6:60): mkString -> scala/collection/IterableOnceOps#mkString(+1).
 [7:4..7:10): fooRef <- _empty_/toplevel$package.fooRef().
+[7:13..7:29): toplevel$package -> _empty_/toplevel$package.
 [7:30..7:33): foo -> _empty_/toplevel$package.foo().
 
 Synthetics: