Fix parser tests that were failing because of scope name 'lambda' vs '<lambda>'

Author: steve-s

graalpython/com.oracle.graal.python.pegparser.test/src/com/oracle/graal/python/pegparser/test/LambdaInFunctionTests.java

@@ -41,10 +41,8 @@
 
 package com.oracle.graal.python.pegparser.test;
 
-import org.junit.Ignore;
 import org.junit.Test;
 
-@Ignore // GR-62729
 public class LambdaInFunctionTests extends ParserTestBase {
 
     @Test

graalpython/com.oracle.graal.python.pegparser.test/src/com/oracle/graal/python/pegparser/test/YieldStatementTests.java

@@ -41,7 +41,6 @@
 
 package com.oracle.graal.python.pegparser.test;
 
-import org.junit.Ignore;
 import org.junit.Test;
 
 public class YieldStatementTests extends ParserTestBase {
@@ -149,7 +148,6 @@ public void customIter01() throws Exception {
     }
 
     @Test
-    @Ignore // GR-62729
     public void yield17() throws Exception {
         checkScopeAndTree("generator = type((lambda: (yield))())");
     }

graalpython/com.oracle.graal.python.pegparser/src/com/oracle/graal/python/pegparser/scope/ScopeEnvironment.java

@@ -645,7 +645,7 @@ public Void visit(ExprTy.Lambda node) {
                 visitSequence(node.args.defaults);
                 visitSequence(node.args.kwDefaults);
             }
-            enterBlock("<lambda>", ScopeType.Function, node);
+            enterBlock("lambda", ScopeType.Function, node);
             try {
                 if (node.args != null) {
                     node.args.accept(this);