eval()s should not be neverAssignInParentScope

Author: eregon

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

@@ -379,7 +379,7 @@ private TranslatorEnvironment environmentForFrame(RubyContext context, Materiali
             final MaterializedFrame parent = RubyArguments.getDeclarationFrame(frame);
             // TODO(CS): how do we know if the frame is a block or not?
             return new TranslatorEnvironment(environmentForFrame(context, parent), parseEnvironment, parseEnvironment.allocateReturnID(),
-                    true, true, false,
+                    true, false, false,
                     sharedMethodInfo, sharedMethodInfo.getName(), 0, null, frame.getFrameDescriptor());
         }
     }

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

@@ -38,6 +38,7 @@ public class TranslatorEnvironment {
     private BreakID breakID;
 
     private final boolean ownScopeForAssignments;
+    /** Whether this is a lexical scope barrier (def, module, class) */
     private final boolean neverAssignInParentScope;
     private final boolean isModuleBody;