Merge pull request #13139 from dotty-staging/fix-13134

Analyze end markers when looking ahead

Author: odersky

compiler/src/dotty/tools/dotc/parsing/Scanners.scala

@@ -612,6 +612,7 @@ object Scanners {
       prev.copyFrom(this)
       lastOffset = lastCharOffset
       fetchToken()
+      if token == END && !isEndMarker then token = IDENTIFIER
     }
 
     def reset() = {

tests/pos/i13134.scala

@@ -0,0 +1,10 @@
+def test =
+  {
+    val end = 0
+    assert(~end == -1) //Not found: ~
+  }
+
+  {
+    val end = false
+    assert(!end) // postfix operator `end` needs to be enabled
+  }              // by making the implicit value scala.language.postfixOps visible.