Fixed spurious cannot borrow immutable item error with a closure.

davidtwco · davidtwco · commit c6b1ba56d763 · 2017-11-30T23:19:06.000Z
diff --git a/src/librustc_mir/build/mod.rs b/src/librustc_mir/build/mod.rs
@@ -581,7 +581,7 @@ impl<'a, 'gcx, 'tcx> Builder<'a, 'gcx, 'tcx> {
             }
 
             self.local_decls.push(LocalDecl {
-                mutability: Mutability::Not,
+                mutability: Mutability::Mut,
                 ty,
                 source_info: SourceInfo {
                     scope: ARGUMENT_VISIBILITY_SCOPE,

Original file line number	Diff line number	Diff line change
`@@ -581,7 +581,7 @@ impl<'a, 'gcx, 'tcx> Builder<'a, 'gcx, 'tcx> {`
`581`	`581`	`}`
`582`	`582`
`583`	`583`	`self.local_decls.push(LocalDecl {`
`584`		`- mutability: Mutability::Not,`
	`584`	`+ mutability: Mutability::Mut,`
`585`	`585`	`ty,`
`586`	`586`	`source_info: SourceInfo {`
`587`	`587`	`scope: ARGUMENT_VISIBILITY_SCOPE,`