rename irrefutable_let_pattern to irrefutable_let_patterns

Author: nikomatsakis

src/doc/unstable-book/src/language-features/irrefutable-let-pattern.md renamed to src/doc/unstable-book/src/language-features/irrefutable-let-patterns.md

@@ -1,4 +1,4 @@
-# `irrefutable_let_pattern`
+# `irrefutable_let_patterns`
 
 The tracking issue for this feature is: [#44495]
 
@@ -11,13 +11,13 @@ in the `if let` and `while let` forms. The old way was to always error
 but now with a tag the error-by-default lint can be switched off.
 
 ```rust
-#![feature(irrefutable_let_pattern)]
+#![feature(irrefutable_let_patterns)]
 
 fn main() {
-    #[allow(irrefutable_let_pattern)]
+    #[allow(irrefutable_let_patterns)]
     if let _ = 5 {}
 
-    #[allow(irrefutable_let_pattern)]
+    #[allow(irrefutable_let_patterns)]
     while let _ = 5 {}
 }
 ```

src/librustc_mir/hair/pattern/check_match.rs

@@ -369,7 +369,7 @@ fn check_arms<'a, 'tcx>(cx: &mut MatchCheckCtxt<'a, 'tcx>,
                 NotUseful => {
                     match source {
                         hir::MatchSource::IfLetDesugar { .. } => {
-                            if cx.tcx.features().irrefutable_let_pattern {
+                            if cx.tcx.features().irrefutable_let_patterns {
                                 cx.tcx.lint_node(
                                     lint::builtin::IRREFUTABLE_LET_PATTERNS,
                                     hir_pat.id, pat.span,
@@ -404,7 +404,7 @@ fn check_arms<'a, 'tcx>(cx: &mut MatchCheckCtxt<'a, 'tcx>,
                                 },
                                 // The arm with the wildcard pattern.
                                 1 => {
-                                    if cx.tcx.features().irrefutable_let_pattern {
+                                    if cx.tcx.features().irrefutable_let_patterns {
                                         cx.tcx.lint_node(
                                             lint::builtin::IRREFUTABLE_LET_PATTERNS,
                                             hir_pat.id, pat.span,

src/libsyntax/feature_gate.rs

@@ -468,7 +468,7 @@ declare_features! (
     (active, tool_attributes, "1.25.0", Some(44690), None),
 
     // allow irrefutable patterns in if-let and while-let statements (RFC 2086)
-    (active, irrefutable_let_pattern, "1.27.0", Some(44495), None),
+    (active, irrefutable_let_patterns, "1.27.0", Some(44495), None),
 
     // Allows use of the :literal macro fragment specifier (RFC 1576)
     (active, macro_literal_matcher, "1.27.0", Some(35625), None),

src/test/compile-fail/feature-gate-without_gate_irrefutable_pattern.rs

@@ -1,4 +1,4 @@
-// gate-test-irrefutable_let_pattern
+// gate-test-irrefutable_let_patterns
 
 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
 // file at the top-level directory of this distribution and at
@@ -11,7 +11,7 @@
 // except according to those terms.
 
 fn main() {
-    #[allow(irrefutable_let_pattern)]
+    #[allow(irrefutable_let_patterns)]
     if let _ = 5 {}
     //~^ ERROR 15:12: 15:13: irrefutable if-let pattern [E0162]
 }

src/test/compile-fail/should-fail-no_gate_irrefutable_if_let_pattern.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// should-fail-irrefutable_let_pattern
+// should-fail-irrefutable_let_patterns
 fn main() {
     if let _ = 5 {}
     //~^ ERROR irrefutable if-let pattern [E0162]

src/test/compile-fail/should-fail-with_gate_irrefutable_pattern_deny.rs

@@ -8,10 +8,10 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#![feature(irrefutable_let_pattern)]
+#![feature(irrefutable_let_patterns)]
 
-// should-fail-irrefutable_let_pattern_with_gate
+// should-fail-irrefutable_let_patterns_with_gate
 fn main() {
     if let _ = 5 {}
-    //~^ ERROR irrefutable if-let pattern [irrefutable_let_pattern]
+    //~^ ERROR irrefutable if-let pattern [irrefutable_let_patterns]
 }

src/test/run-pass/allow_irrefutable_let_patterns.rs

@@ -8,14 +8,14 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#![feature(irrefutable_let_pattern)]
+#![feature(irrefutable_let_patterns)]
 
-// must-compile-successfully-irrefutable_let_pattern_with_gate
+// must-compile-successfully-irrefutable_let_patterns_with_gate
 fn main() {
-    #[allow(irrefutable_let_pattern)]
+    #[allow(irrefutable_let_patterns)]
     if let _ = 5 {}
 
-    #[allow(irrefutable_let_pattern)]
+    #[allow(irrefutable_let_patterns)]
     while let _ = 5 {
         break;
     }