[GR-19220] Add support for Ruby 3.1's Hash shorthand/punning syntax (#2694)

PullRequest: truffleruby/3441

Author: eregon

CHANGELOG.md

@@ -4,6 +4,7 @@ New features:
 
 * Foreign strings now have all methods of Ruby `String`. They are treated as `#frozen?` UTF-8 Ruby Strings.
 * Add `Java.add_to_classpath` method to add jar paths at runtime (#2693, @bjfish).
+* Add support for Ruby 3.1's Hash shorthand/punning syntax (@nirvdrum).
 
 Bug fixes:
 

spec/tags/language/hash_tags.txt

@@ -1,2 +1,3 @@
 fails:The ** operator makes a caller-side copy when calling a method taking a positional Hash
 fails:Hash literal checks duplicated keys on initialization
+fails:Hash literal checks duplicated float keys on initialization

spec/truffleruby.mspec

@@ -103,6 +103,7 @@ class MSpecScript
 
   # Use spec/ruby/core/nil/nil_spec.rb as a dummy file to avoid being empty
   set :next, %w[
+    spec/ruby/language/hash_spec.rb
     spec/ruby/core/nil/nil_spec.rb
     spec/ruby/core/gc/measure_total_time_spec.rb
     spec/ruby/core/gc/total_time_spec.rb

src/main/java/org/truffleruby/parser/parser/RubyParser.java

@@ -2735,6 +2735,11 @@ assoc           : arg_value tASSOC arg_value {
                     ParseNode label = support.asSymbol(support.getPosition($2), $1);
                     $$ = support.createKeyValue(label, $2);
                 }
+                | tLABEL {
+                    ParseNode val = support.declareIdentifier($1);
+                    ParseNode label = support.asSymbol(support.getPosition(null), $1);
+                    $$ = support.createKeyValue(label, val);
+                }
                 | tSTRING_BEG string_contents tLABEL_END arg_value {
                     if ($2 instanceof StrParseNode) {
                         DStrParseNode dnode = new DStrParseNode(support.getPosition($2), lexer.getEncoding());

src/main/java/org/truffleruby/parser/parser/RubyParser.y

@@ -0,0 +1 @@
+exclude :test_basic_response_response_operations, "transient"

src/main/java/org/truffleruby/parser/parser/YyTables.java

@@ -22,3 +22,4 @@
 exclude :test_ignore_deadlock, "needs investigation"
 exclude :test_switch_while_busy_loop, "transient"
 exclude :test_handle_interrupt_and_p, "transient"
+exclude :test_thread_value_in_trap, "transient"