Bug 38892 ASTRewrite should support copying nodes more than once.
M1 Try is result currently in an exception: org.eclipse.jdt.internal.corext.Assert$AssertionFailedException: assertion failed; Node used as more than one copy source at java.lang.Throwable.<init>(Throwable.java) at java.lang.Throwable.<init>(Throwable.java) at org.eclipse.jdt.internal.corext.Assert$AssertionFailedException.<init> (Assert.java:55) at org.eclipse.jdt.internal.corext.Assert.isTrue(Assert.java:136) at org.eclipse.jdt.internal.corext.dom.ASTRewrite.createCopy (ASTRewrite.java:289)
org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/astrewrite/ASTRewritingTypeDeclTest.java
{ 
			SingleVariableDeclaration decl= (SingleVariableDeclaration) arguments.get(2);
			
			SingleVariableDeclaration modifierNode= ast.newSingleVariableDeclaration();
			modifierNode.setModifiers(decl.getModifiers()); 
			modifierNode.setExtraDimensions(0); 
			
			rewrite.markAsModified(decl, modifierNode);
		}			
			
		ASTRewriteCorrectionProposal proposal= new ASTRewriteCorrectionProposal("", cu, rewrite, 10, null);
		proposal.getCompilationUnitChange().setSave(true);
		
		proposal.apply(null);
		
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class E {\n");
		buf.append("    public void foo(final float[][] count[], float k, int[] x) {\n");
		buf.append("    }\n");
		buf.append("}\n");	
		assertEqualString(cu.getSource(), buf.toString());
		clearRewrite(rewrite);
	}	
	
	public void testVariableDeclarationFragment() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class E {\n");