Use Symbol not name!!

[Cherry-picked 2a02773]

Author: dwijnand

compiler/src/dotty/tools/dotc/core/Symbols.scala

@@ -319,7 +319,7 @@ object Symbols extends SymUtils {
           case cls: ClassSymbol => cls.rootTreeContaining(name.toString)
           case _                => EmptyTree
         val targets = root.collectSubTrees:
-          case tree: DefDef if tree.name == name => methPart(tree.rhs).tpe
+          case tree: DefDef if tree.symbol == denot.symbol => methPart(tree.rhs).tpe
         targets.match
           case (tp: NamedType) :: _ => tp.symbol.sourceSymbol
           case _                    => this

presentation-compiler/test/dotty/tools/pc/tests/definition/PcDefinitionSuite.scala

@@ -263,6 +263,17 @@ class PcDefinitionSuite extends BasePcDefinitionSuite:
         |""".stripMargin
     )
 
+  @Test def exportTerm1Overload =
+    check(
+      """trait Foo:
+        |  def <<meth>>(x: Int): Int
+        |  def meth(x: String): String
+        |class Bar(val foo: Foo):
+        |  export foo.*
+        |  def test(bar: Bar) = bar.me@@th(0)
+        |""".stripMargin
+    )
+
   @Test def `named-arg-local` =
     check(
       """|