Foo.pm6

class Foo {
    method foo () {
        ROUTE: for ^1 {
        }
    }
}

OUTPUT

===SORRY!===
This type cannot unbox to a native string
   at src/gen/m-CORE.setting:10407  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/perl6/runtime/CORE.setting.moarvm:new:82)
 from src/Perl6/Grammar.nqp:1191  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:label:300)
 from src/Perl6/Grammar.nqp:1203  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:statement:207)
 from src/Perl6/Grammar.nqp:1142  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:statementlist:231)
 from src/Perl6/Grammar.nqp:1290  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:blockoid:193)
 from src/Perl6/Grammar.nqp:2502  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:method_def:1665)
 from <unknown>:1  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:routine_declarator:sym<method>:147)
 from gen/moar/stage2/QRegex.nqp:810  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/QRegex.moarvm:!protoregex:110)
 from <unknown>:1  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:routine_declarator:10)
 from <unknown>:1  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:term:sym<routine_declarator>:57)
 from gen/moar/stage2/QRegex.nqp:810  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/QRegex.moarvm:!protoregex:110)
 from <unknown>:1  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:term:10)
 from src/Perl6/Grammar.nqp:3429  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:termish:242)
 from gen/moar/stage2/NQPHLL.nqp:643  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/NQPHLL.moarvm:EXPR:75)
 from src/Perl6/Grammar.nqp:3460  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:EXPR:24)
 from src/Perl6/Grammar.nqp:1205  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:statement:355)
 from src/Perl6/Grammar.nqp:1142  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:statementlist:231)
 from src/Perl6/Grammar.nqp:1290  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:blockoid:193)
 from src/Perl6/Grammar.nqp:2238  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:package_def:2254)
 from <unknown>:1  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:package_declarator:sym<class>:175)
 from gen/moar/stage2/QRegex.nqp:810  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/QRegex.moarvm:!protoregex:110)
 from <unknown>:1  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:package_declarator:10)
 from <unknown>:1  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:term:sym<package_declarator>:57)
 from gen/moar/stage2/QRegex.nqp:810  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/QRegex.moarvm:!protoregex:110)
 from <unknown>:1  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:term:10)
 from src/Perl6/Grammar.nqp:3429  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:termish:242)
 from gen/moar/stage2/NQPHLL.nqp:643  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/NQPHLL.moarvm:EXPR:75)
 from src/Perl6/Grammar.nqp:3460  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:EXPR:24)
 from src/Perl6/Grammar.nqp:1205  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:statement:355)
 from src/Perl6/Grammar.nqp:1142  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:statementlist:231)
 from gen/moar/stage2/NQPHLL.nqp:851  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/NQPHLL.moarvm:LANG:146)
 from src/Perl6/Grammar.nqp:1513  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:FOREIGN_LANG:67)
 from src/Perl6/Grammar.nqp:1079  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:comp_unit:2652)
 from src/Perl6/Grammar.nqp:350  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:TOP:484)
 from gen/moar/stage2/QRegex.nqp:1402  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/QRegex.moarvm:parse:44)
 from gen/moar/stage2/NQPHLL.nqp:1510  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/NQPHLL.moarvm:parse:80)
 from gen/moar/stage2/NQPHLL.nqp:1466  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/NQPHLL.moarvm:compile:197)
 from src/gen/m-ModuleLoader.nqp:261  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/ModuleLoader.moarvm::115)
 from src/gen/m-ModuleLoader.nqp:230  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/ModuleLoader.moarvm::179)
 from src/gen/m-ModuleLoader.nqp:212  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/ModuleLoader.moarvm:load_module:404)
 from src/gen/m-CORE.setting:22262  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/perl6/runtime/CORE.setting.moarvm::290)
 from src/gen/m-CORE.setting:18979  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/perl6/runtime/CORE.setting.moarvm:protect:49)
 from src/gen/m-CORE.setting:22251  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/perl6/runtime/CORE.setting.moarvm:load_module:81)
 from src/Perl6/World.nqp:344  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/World.moarvm:load_module:44)
 from src/Perl6/Grammar.nqp:1499  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:statement_control:sym<use>:1335)
 from gen/moar/stage2/QRegex.nqp:810  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/QRegex.moarvm:!protoregex:110)
 from <unknown>:1  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:statement_control:10)
 from src/Perl6/Grammar.nqp:1205  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:statement:325)
 from src/Perl6/Grammar.nqp:1142  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:statementlist:231)
 from gen/moar/stage2/NQPHLL.nqp:851  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/NQPHLL.moarvm:LANG:146)
 from src/Perl6/Grammar.nqp:1513  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:FOREIGN_LANG:67)
 from src/Perl6/Grammar.nqp:1079  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:comp_unit:2652)
 from src/Perl6/Grammar.nqp:350  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Grammar.moarvm:TOP:484)
 from gen/moar/stage2/QRegex.nqp:1402  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/QRegex.moarvm:parse:44)
 from gen/moar/stage2/NQPHLL.nqp:1510  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/NQPHLL.moarvm:parse:80)
 from gen/moar/stage2/NQPHLL.nqp:1466  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/NQPHLL.moarvm:compile:197)
 from gen/moar/stage2/NQPHLL.nqp:1213  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/NQPHLL.moarvm:eval:53)
 from gen/moar/stage2/NQPHLL.nqp:1423  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/NQPHLL.moarvm:evalfiles:87)
 from gen/moar/stage2/NQPHLL.nqp:1326  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/NQPHLL.moarvm:command_eval:211)
 from src/Perl6/Compiler.nqp:17  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/Perl6/Compiler.moarvm:command_eval:93)
 from gen/moar/stage2/NQPHLL.nqp:1301  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/nqp/lib/NQPHLL.moarvm:command_line:116)
 from src/gen/m-main.nqp:39  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/perl6/runtime/perl6.moarvm:MAIN:18)
 from src/gen/m-main.nqp:35  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/perl6/runtime/perl6.moarvm:<mainline>:197)
 from <unknown>:1  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/perl6/runtime/perl6.moarvm:<main>:8)
 from <unknown>:1  (/home/vti/dev/perl6/rakudo-star-2014.09/install/languages/perl6/runtime/perl6.moarvm:<entry>:9)

script.pl6

use Foo;