Fixed debugger stepinto.

Change-Id: I3bf91e5984c00617f999f38029aa38e1bf512d33
diff --git a/plugins/org.eclipse.acceleo.aql/src/org/eclipse/acceleo/aql/evaluation/AbstractModuleElementService.java b/plugins/org.eclipse.acceleo.aql/src/org/eclipse/acceleo/aql/evaluation/AbstractModuleElementService.java
index c490c23..a869e58 100644
--- a/plugins/org.eclipse.acceleo.aql/src/org/eclipse/acceleo/aql/evaluation/AbstractModuleElementService.java
+++ b/plugins/org.eclipse.acceleo.aql/src/org/eclipse/acceleo/aql/evaluation/AbstractModuleElementService.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2016, 2020 Obeo.
+ * Copyright (c) 2016, 2021 Obeo.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -91,7 +91,7 @@
 	 * @return the {@link AcceleoEvaluator}
 	 */
 	protected AcceleoEvaluator getEvaluator() {
-		return new AcceleoEvaluator(evaluator);
+		return evaluator;
 	}
 
 	/**
diff --git a/plugins/org.eclipse.acceleo.aql/src/org/eclipse/acceleo/aql/evaluation/AcceleoEvaluator.java b/plugins/org.eclipse.acceleo.aql/src/org/eclipse/acceleo/aql/evaluation/AcceleoEvaluator.java
index 0aa135f..a46bd5f 100644
--- a/plugins/org.eclipse.acceleo.aql/src/org/eclipse/acceleo/aql/evaluation/AcceleoEvaluator.java
+++ b/plugins/org.eclipse.acceleo.aql/src/org/eclipse/acceleo/aql/evaluation/AcceleoEvaluator.java
@@ -172,8 +172,11 @@
 
 		destination = destinationURI;
 		generationStrategy = strategy;
+
+		final String savedLastLineOfLastStatement = lastLineOfLastStatement;
+		final boolean savedInlinedBlock = inlinedBlock;
 		lastLineOfLastStatement = "";
-		// TODO this is an issue for calling generate() multiple times
+		inlinedBlock = false;
 		if (generationResult == null) {
 			generationResult = new GenerationResult();
 		}
@@ -183,6 +186,8 @@
 			res = doSwitch(node);
 		} finally {
 			popVariables();
+			lastLineOfLastStatement = savedLastLineOfLastStatement;
+			inlinedBlock = savedInlinedBlock;
 		}
 
 		return res;