fix InlineMatch pos for summonFrom (#16025)

WojciechMazur · web-flow · commit c704791bea8c · 2022-09-15T16:34:18.000+02:00
Use the span of all tree instead of only cases. This is needed for Metals: scalameta/metals#4366
diff --git a/compiler/src/dotty/tools/dotc/typer/Applications.scala b/compiler/src/dotty/tools/dotc/typer/Applications.scala
@@ -994,7 +994,7 @@ trait Applications extends Compatibility {
                   case CaseDef(pat, _, _) =>
                     report.error(UnexpectedPatternForSummonFrom(pat), pat.srcPos)
                 }
-                typed(untpd.InlineMatch(EmptyTree, cases).withSpan(arg.span), pt)
+                typed(untpd.InlineMatch(EmptyTree, cases).withSpan(tree.span), pt)
               case _ =>
                 errorTree(tree, em"argument to summonFrom must be a pattern matching closure")
             }

Original file line number	Diff line number	Diff line change
`@@ -994,7 +994,7 @@ trait Applications extends Compatibility {`
`994`	`994`	`case CaseDef(pat, _, _) =>`
`995`	`995`	`report.error(UnexpectedPatternForSummonFrom(pat), pat.srcPos)`
`996`	`996`	`}`
`997`		`- typed(untpd.InlineMatch(EmptyTree, cases).withSpan(arg.span), pt)`
	`997`	`+ typed(untpd.InlineMatch(EmptyTree, cases).withSpan(tree.span), pt)`
`998`	`998`	`case _ =>`
`999`	`999`	`errorTree(tree, em"argument to summonFrom must be a pattern matching closure")`
`1000`	`1000`	`}`