resync tests after Std fix

Author: timbunce

t/02_interface.t

@@ -205,7 +205,6 @@ class com::example::Second { ... };
 
 role com::example::NestedIntTest {
 
-    # our Int $USELESS_CONSTANT = ...; # int
     method USELESS_CONSTANT (--> Int) is export { ... }
 
     method array_returner (
@@ -218,12 +217,12 @@ role com::example::NestedIntTest {
 
     multi method object_returner (
     --> Str   #  java.lang.String
-    ) { ... }
+    ) { ... } # throws java.lang.NumberFormatException, java.lang.Exception
 
     multi method object_returner (
         Str $v1,  # java.lang.String
     --> Str   #  java.lang.String
-    ) { ... }
+    ) { ... } # throws java.lang.NumberFormatException
 
     method recurse_for_me (
     --> com::example::Second   #  com.example.Second

t/03_class.t

@@ -186,7 +186,7 @@ my @correct_perl_6 = split /\n/, <<'EO_Correct_Perl_6';
 use v6;
 
 
-class ClassTest {
+role ClassTest {
 
     multi method new (
     --> ClassTest   #  ClassTest
@@ -246,9 +246,8 @@ eq_or_diff( \@perl_6, \@correct_perl_6, 'emission' )
 use v6;
 
 
-class dupMethodTest {
+role dupMethodTest {
 
-    # our Int $USELESS_CONSTANT = ...; # int
     method USELESS_CONSTANT (--> Int) is export { ... }
 
     method new (