Remove unused variable

liufengyun · michelou · commit a4ef09a3de99 · 2021-03-22T17:27:27.000+01:00
diff --git a/compiler/src/dotty/tools/dotc/typer/Typer.scala b/compiler/src/dotty/tools/dotc/typer/Typer.scala
@@ -3804,8 +3804,6 @@ class Typer extends Namer
               mapOver(tp)
         }
 
-        val sym = tree.tpe.widen.classSymbol
-
         // Is it certain that a value of `tree.tpe` is never a subtype of `pt`?
         // It is true if either
         // - the class of `tree.tpe` and class of `pt` cannot have common subclass, or

Original file line number	Diff line number	Diff line change
`@@ -3804,8 +3804,6 @@ class Typer extends Namer`
`3804`	`3804`	`mapOver(tp)`
`3805`	`3805`	`}`
`3806`	`3806`
`3807`		`- val sym = tree.tpe.widen.classSymbol`
`3808`		`-`
`3809`	`3807`	// Is it certain that a value of `tree.tpe` is never a subtype of `pt`?
`3810`	`3808`	`// It is true if either`
`3811`	`3809`	// - the class of `tree.tpe` and class of `pt` cannot have common subclass, or