[Ltk-AST] Fix naming
diff --git a/ltk/org.eclipse.statet.ltk.core/src/org/eclipse/statet/ltk/ast/core/AstNode.java b/ltk/org.eclipse.statet.ltk.core/src/org/eclipse/statet/ltk/ast/core/AstNode.java
index d17e7b2..65cf14c 100644
--- a/ltk/org.eclipse.statet.ltk.core/src/org/eclipse/statet/ltk/ast/core/AstNode.java
+++ b/ltk/org.eclipse.statet.ltk.core/src/org/eclipse/statet/ltk/ast/core/AstNode.java
@@ -85,7 +85,7 @@
 	boolean hasChildren();
 	int getChildCount();
 	AstNode getChild(final int index);
-	int getChildIndex(final AstNode element);
+	int getChildIndex(final AstNode child);
 	
 	
 	void addAttachment(final Object data);